y5 Peek at the Week Science and Enquiry

8/12/2019 y5 Peek at the Week Science and Enquiry

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YEAR 5TERM 1 / 2011

WEEK 2 /

students name SUBJECT Science

SCORE

I Tag the food types.

Each answer is worth 1 point.

II Now sort the food from the pyramid into the boxes of food groups.TYPE OF FOOD

F O O D G R O U Pproteins carbs fats vitamins/fibre

fish bread milk banana chocolate spaghetti butter nuts eggs


Score 6

Score 9


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III Answer the following questions.1. Which type of food should you consume most? ___________________________________2. Which type of food should you consume least? ___________________________________3. What happens if you do not eat enough vitamin C? ________________________________

___________________________________________________________________________

4. What are the symptoms of scurvy? ________________________________________________________________________________________________________________________

5. What makes you healthy? _______________________________________________________________________________________________________________________________

Each answer is worth 2 points.

IV Circle the things Ben needs to stay healthy.jogging watching TV water

computer games steak

apples Coke

cheese mayonnaise

carrot chocolate sleep


V Colour red and blue blood in the heart.

This answer is worth 6 points.

Score 20

Score 7

Score 6


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VI Circle the right answer.1. What does your heart do?

A It pumps air around your body.B It pumps blood around your body.C It pumps blood to just your muscles.

2. Blood moves round your body in special tubescalledblood vessels. Which of these is NOT a blood vessel?TIP: Look at the picture of the heart.

A A vein.B An artery.C A ventricle.

3. Veins carry blood...A towards the heart.B away from the heart.C inside the heart.

4. What happens to your blood when it reaches your lungs?A It picks up oxygen.B It picks up carbon dioxide.C Nothing.

5. What does your pulse rate tell you?A How fast your heart is beating.B How fast you are running.C How old you are.

6. Why does your heart beat faster when you exercise?A Because it gets excited.B To get oxygen to your muscles more quickly.C To make a louder noise.

7.

Which of these would make your heart beat the fastest?A Lying down.B Sitting on a chair.C Running.

8. James wants to become healthier. Which of these would NOT help him?A Regular exercise.B Eating a healthy diet.C Using the car more instead of walking.


Score 16


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VII Look at the problem and think of your scientific inquiry.Andrea wants to know what would happen if she trained more and ate less over a period of sevendays. What do you think would happen?

Question: _______________________________________________________________________

_________________________________________________________________________________

Hypothesis: _______________________________________________________________________

_________________________________________________________________________________

Experiment: ______________________________________________________________________

_________________________________________________________________________________

Now ask your teacher to give you the experiment readings and draw a conclusion.

Conclusion: _______________________________________________________________________

_________________________________________________________________________________

Present results in a graph.

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Mon Tue Wed Thu Fri Sat Sun

Each answer is worth 2 points. The graph is worth 10 points.

Andreas weight over a period of 7 days.

Mon Tue Wed Thu Fri Sat Sunkg 41 40 38 37 36 34 33

Score 18


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VIII Fill in the gaps in the text using the words from the box.

Whether it's our family, our school, in public, or in the media, it can seem like everywhere we

look, someone's 1) _____________________ a cigarette.

First off, smoking is 2) _____________________ to your health. There's no question about it.

In fact, 400,000 people die each year from smoking-related illnesses.

3) _____________________ has shown that adult smokers usually take their first puff

before age 18 and over 3,000 kids become regular smokers each day. This means thatmany of those who lose their 4) _____________________ because of smoking-related

illnesses could probably live much longer if they didn't smoke.

Another problem is that smoking is usually not a one-shot deal. It can take only

weeks or days for new smokers to become. 5) _____________________ Why? Because

cigarettes contain a drug called 6) _____________________, the ingredient that causes the

addiction. Nicotine is a stimulant, which means it makes you feel a little hyper. The more you

smoke, the more you want to continue to smoke. Your body becomes physically dependent

on the drug and begins to crave it. This is what makes it so difficult to

7) _____________________ smoking once you've started.

Apart from nicotine, there are two more substances which are very dangerous: tar and

carbon monoxide. To give you an idea of the harm these substances can do, picture the thick

pile of tar. The average smoker inhales about one 8) _____________________ of tar a year.

Because a smoker's lungs often don't work as well as they should, the tar may stick and stay

in there for a long time. Tar, like many of the other chemicals in

cigarettes, can cause diseases related to how we,

9) _____________________ like bronchitis. Carbon monoxide a common

pollutant and the same stuff that escapes from the

10) _____________________ in cars. Would you really like to inhale that?


Score 20

EXHAUST ADDICTED DANGEROUS SMOKING

RESEARCH NICOTINE QUIT CUP LIVES BREATHE


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IX Look at the data given and answer the questions to this scientific enquiry.The Health Institute organized a survey to find out when the people started smoking. Aftercollecting the data, the scientists came up with a graph which which shows how many out ofevery 100 smokers started smoking at different ages.

Now use the graph to answer each of these questions.

1. How many of every 100 smokers started smokingbefore they were 16 years old?

2. Did more smokers start smoking before they were16 years old orbetween the ages of 16-17?

3. How many of every 100 smokers started smokingbetween the ages of 18 and 20?

4. How many of every 100 smokers started smokingbefore they turned 18 years old?

5. Did more smokers start smoking between the agesof 16 and 17 orbetween the ages of 18 and 20?


THINK ABOUT IT! What does this bar graph tell you about smoking?

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________


Score 10

Score 10


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X Read the text and answer the questions below - T if they are true or F if they are false.SunbathingMost of us love being outside in the summertime. Sunshine not only makes everything lookbetter, it makes us feel good too. But ultraviolet (UV) rays in the sunlight can damage the

cells in your body. You should do everything you can to avoid getting burnt by the sun. This isbecause over time small amounts of sunburn damage can build up, which may lead to thedevelopment of skin cancer.

Tanning and your skinTanning is a natural process. Your skin creates the brown-coloured pigment called melanin toprotect it against the harmful UV rays in sunlight. This means even the lightest suntan isevidence of skin damage. While a tan is your body's way of protecting itself against UV rays, ifthe damaged skin cells can't repair themselves, they can become cancerous. You should beparticularly careful in spring when your skin is pale. A tan doesn't guarantee that you willavoid skin cancer later on in life. Sun exposure is a key factor in skin cancer, and the number

of cases has doubled over the last few decades.

How can you avoid sun damage?Small children usually love the sun and want to stay outside far longer than adults. But theyare very sensitive to the sun's rays. Keep kids out of the sun for the hottest parts of the dayand protect them with a high SPF (30+). You can protect your skin by following a few basicrules for your skin type. For example, if your skin always burns and never tans, avoidsunbathing and make sure you cover arms and legs with long shirts etc when out in thesummer sun. If your skin gets tanned easily, it does not mean that you are safe from gettingskin cancer. Therefore use SPF of 15 or more. All skin types should stay out of the sun at thehottest times of the day (11am to 3pm).

T or F

1. Ultraviolet rays in the sunlight can not damage the cells in your body.2. You should do everything you can to avoid getting burnt by the sun.3. Over time, small amounts of sunburn damage can build up and cause skin cancer.

4. Your skin creates the coloured pigment called browning.5. A tan is your body's way of protecting itself against UV rays.6. Dark tan guarantees that you will avoid skin cancer later on in life.7. The damaged skin cells can't repair themselves and can become cancerous.8. All skin types should stay out of the sun in the morning.


Score 8


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XI Match the definitions. Be careful, they are tricky! Use the diagram below to help you.

SOLIDIFYINGThe process in which the heated solid materialbecomes liquid.

EVAPORATINGThe process in which the cooled liquid materialreaches the point when it becomes solid.

CONDENSINGThe process in which the cooled gas materialbecomes liquid.

FREEZINGThe process in which the heated liquid materialreaches the point when it becomes gas.

BOILING The process in which the liquid materialbecomes hard.

MELTINGThe process in which the liquid materialbecomes gas.


XII Name 5 different types of matter which can change states (e.g. from liquid to solid andvice versa).

1. 2. 3.4. 5.


Score 6

Score 5


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XIII Choose if the following processes are evaporation (E) or (C) condensation. Put a tickin the right box.

Process E C

1. When the mirror turns cloudy, what is happening?2. When the mirror clears, what is happening?3. What is happening to some of the water in the hot bath?4. When drops of water form on the cold bathroom window, what is

happening?

5. When drops of water form on the outside of the glass of a colddrink, what is happening?

6. When drops of water on the outside of the glass dry off, what ishappening?

7. When your breath forms a cloud on a cold day, what is happening?8. When the cloud of breath disappears again, what is happening?9. When you dry your wet hair, what is happening?10. When the water kettle boils, what is happening?


XIV What can you say about solids and liquids? What are their characteristics? Shape?Volume?

Things I can say aboutsolids

Things I can say aboutsolids and liquids

Things I can say aboutliquids


Score 20

Score 10


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XV Read the text and find the processes: evaporation (E), condensation(C), melting (M) orsolidifying (S), then write it in the box next to it.

I woke up and went to the bathroom. The mirror was dirty so I breathed on it. It went all

mistyand I rubbed it clean.

I looked out of the window. It had been raining and there were puddles

everywhere but the sun was now out and they were drying up.

I went downstairs, filled the kettle and plugged it in. Soon the water

was bubbling away and I noticed that the kitchen windows were getting

steamed up.

I had breakfast, got dressed and went to work at the caf. My first job was to put some

chocolate icing on a cake. I had to heat up some chocolate to make it go runny. I did not

use all the runny chocolate and I left some of it in the bowl. When I came back a

little while later it had gone hard.

Next, I had to make some of our home-made ice-lollies using real fruit juice. I

poured the juice into moulds and put them in the freezer to go hard.

I walked back home with a friend. It was a cold evening and we laughed at the way our breath

kept making misty clouds.


XVI Read the text and draw a graph.Jane and James wanted to see how quickly a candle can burn. They decided to run a fair test:they had three candles of the same size each one exposed to the sun, one in a cupboard andone close to the fireplace. Present their findings in a bar chart and draw conclusion.

Candleexposed to

the sun

Candle in acupboard

Candle closeto the

fireplace

Jane 4 h 20 min 5 hours 4 h 10 min

James 4 h 25 min 4 h 50 min 4 h 15 min

My conclusion:

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________


Score 14

Score 6


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Candle exposed tothe sun

Candle in acupboard

Candle close tothe fireplace

Jane 4 h 20 min 5 hours 4 h 10 min

James 4 h 25 min 4 h 50 min 4 h 15 min


XVII Complete each sentence with the word SOLID, LIQUID, or GAS. Use each word once only.1. A ____________________________ has a definite shape. It does not take the shape of

its container. It also has a definite volume because it can be measured.2. A ____________________________ does not have a definite shape. It sometimes takes

the shape of its container and sometimes flies freely around you. These particles are not

connected to each other and take up whatever space is available.

3. A ____________________________ does not have a definite shape. It takes the shape ofits container. It does have a definite volume because it can be measured.


Score 6

Score 6


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XVIII Read the text and analyse the chart.Chris and Chloe conducted an experiment. They weighed 10 balloons, then blew them up andweighed again. The table shows their readings. Compared the table and the chart below andCORRECT4 mistakes in the chart.

Balloons (g) before being blown up

1 2 3 4 5 6 7 8 9 10

Chloe 1.0 1.4 1.5 1.8 1.2 1.5 1.7 1.0 1.1 1.3

Chris 1.2 1.3 1.0 1.1 1.2 1.4 1.0 1.1 1.5 1.0

Balloons (g) after being blown up

1 2 3 4 5 6 7 8 9 10

Chloe 3.4 3.9 3.1 2.9 3.8 3.7 3.3 4.3 3.5 3.0

Chris 3.5 3.7 2.9 3.0 4.0 3.2 3.3 4.1 3.6 3.1


3.53.7

2.93

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3.23.3

4.1

3.6

3.1

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0.5

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1.8

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1.51.7

11.1

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1 2 3 4 5 6 7 8 9 10

weightofbananas(kg)

balloons

Weight of bananas before and after eating

Chris (after) Chloe (after) Chris (before) Chloe (before)

Score 8


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XIX Look at the chart and think about what kind of experiment it represents. Then write yourscientific method below.

Question: _______________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Hypothesis: _____________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Experiment:_____________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Conclusion: _____________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________


2.32.62.5

2.9

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2.42.7

3.23

3.7

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0.5

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1.5

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2.5

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3.5

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Weight(g)

Eggs before and after boiling

Weight of eggs before and after boiling

Egg 1 Egg 2 Egg 3 Egg 4 Egg 5

Score 12


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XX How are these seeds dispersed? Write your answers in the boxes below the pictures?


XXI Fill in the missing gaps.


Score 15

Score 16

anther stigma sepal style filament petal stem ovary

by explosion by humans or animals

by hitch-hiking by water by wind


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XXII These children have recorded their observations about lettuce seeds germinating at threetemperatures. They planted the same number of seeds at each temperature.

TemperatureTotal number of lettuce seeds germinated

Day 1 Day 2 Day 3 Day 4 Day 5 Day 6

5 C 0 o o 1 1

15 C 0 0 0 1 5 9

25 C 0 2 8 13 17 19

1. Complete the table to show how many seeds germinated at 5C on Day 3.2. The children discussed the results in the table. Decide whether each conclusion is true,

false or you can't tell.

True FalseCant

tell

The quickest germination was at 25C.

At 25C all the seeds germinated by Day 6.

5C is too cold for seeds to germinate.

The best temperature for germination was 15C.

3. The children were trying to find out something about seeds. What question were thechildren investigating?

________________________________________________________________________

________________________________________________________________________

4. After this, Allan made a prediction and Maya responded.

Who do you agree with? Allan or Maya Explain your answer.

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________Answers to questions 1 and 3 are worth 2 points. Answers to questions 2 and 4 are worth 4 points.

Score 12

The best temperatureto germinate any kind

of seed is 25C.

You have not collectedenough information to

support your prediction.


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XXIII Fill in the missing gaps.1. ____________________________ receives the pollen during fertilisation.2. ____________________________ makes and contains pollen.3. ____________________________ holds ovules.4. ____________________________ holds the anther.5. ____________________________ are usually colourful to attract insects.6. ____________________________ protect the flower bud.7. The female reproductive organ is called ____________________________.8. A pollen grain slides down the ____________________________ to fertilise the ovule.9. ____________________________ holds the whole flower elevated from the soil.10. The male reproductive organs is called ____________________________.


XXIV Draw and explain the life cycle of a flowering plant.

1. 2. 3. 4. 5. 6. 7. 8.


Score 10

Score 7


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XXV Jonathan was asked to investigate how the temperature affects the growth rate of pinetree seedlings.

He potted four seedlings in identical pots and soil mixture and watered each one daily withexactly the same amount of water. These are the variables he changed:

He placed a clear glass dome over seedlings A, C and D. Seedling A was exposed to twice the normal outside temperature. Seedling B was left exposed to the normal outside temperature. Seedling C was exposed to half the normal outside temperature. Seedling D was exposed to the normal outside temperature but under the dome (the

outside temperature was regulated).

Look again at the scientific question. Which set up is NOTnecessary for a fair test? ______Explain why.


Score 5


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XXVI Fill in the gaps using the words from the box.

ears disorganized 1,160 km/h supersonic solid

loud vacuum particles vibrations slow

Sound is a form of energy. For sound to be

produced (1)_________________ must be set up

by a source. This is done by hitting (drum),

blowing (recorder), stroking (sand paper on

wood) and electrical (loudspeaker).

The vibrations travel through a solid, liquid or gas,

and reach our (2)_________________ where it can be heard. If the vibrations have a lot of

energy then they are (3)_________________ If they have little energy then the sound is quiet.

Sometimes the vibrations can be seen or felt on the skin. In air, sound travels at

(4)_________________, but speeds up in water to 5, 400km/h. Things which travel faster

than sound are called (5)_________________.

Dolphins communicate with each other under the sea. The sound can travel

for hundreds of miles, much further than in air. Sound travels even morequickly through a (6)_________________ than through the air or water.

Standing near a railway line, a humming from the rails can be heard several minutes before a

train itself can be heard directly.

Sound travels through solids and liquids as well as air. Sound cannot travel through a

(7)_________________ .Sound travels at different speeds in different substances. This is

because different substances are made up of particles in different ways. The sound pushes

the (8)_________________ and as it travels it moves from one particle to another. In a gas

the particles are far apart, so some of the sound energy is lost when trying to push oneparticle into another one. Therefore, the speed of sound is (9)_________________ so it will

not travel as fast as it does in substances where the particles are closer together.

The difference between NOISE and MUSIC is that musical sounds are organized into patterns

that have pitch and rhythm. Noise is just random, (10)_________________ sounds. Sounds

are made and travel in the same way whether they are musical sounds or noise.


Score 10


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XXVII Do the experiment following the instructions below then answer the questions.Question: Would the sound travel faster through the wood?

Hypothesis: ___________________________________________________________________

_____________________________________________________________________________

What you need: Quiet room Your finger Table or desk

Experiment:1. In a quiet room, tap your finger gently on the surface of a

desk or table. Pay attention to how loud the noise is.2. Now put your ear down on the desk and continue gently

tapping your finger. Your finger should stay about the

same distance away from your ear as it was when youtapped the first time. How is the noise different?

______________________________________________________________________________

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______________________________________________________________________________

______________________________________________________________________________

Conclusion: ___________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________


XXVIII Circle the correct answer.In old westerns, cowboys often put their ear to a railway track to hear if a train is coming.This is because the speed of sound waves depends upon the material through which they aretravelling. Sound travels 15 times faster through the metal railway tracks than through air,giving the cowboy an early warning of the train's arrival. Sound travels fastest in solidsbecause the molecules are close together, which makes it easier for the vibrations to passfrom one molecule to the next.

Nothing can travel faster than light. However, some aeroplanes can fly faster than sound. Wesay that they can pass through the sound barrier. When planes fly this fast, they create a

Score 10


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sonic boom. This is a very loud booming sound wave that can be heard for miles. It is verysimilar to the wake made behind a fast-moving boat.

Have you ever been swimming in the sea when a boat goes past a long way off? You can hearthe motor sooner and much more clearly underwater than above the water. Thats becausethe sound travels faster through the water.

A common way to measure the speed of sound is to set up two microphones that are bothattached to an electronic timer. A loud noise is made near the first microphone and the timerstarts. The sound wave then travels towards the second microphone. When the wave reachesthe second microphone, the timer stops. If you know the distance between the twomicrophones you can work out the speed of sound.

1. Look at the table to find which of these materialsdoes sound travel fastest in?A AirB MetalC A vacuum

2. How much faster does the sound travel through metalthan through water?A 15B 330C 5000

3. Why does the sound travel faster through solids?A Because the molecules are softer.B Because the molecules are closer.C Because the molecules are vibrating.

4. When do the planes create a sonic boom?A When they travel at the speed of the sound.B When they travel slower than the speed of the sound.C When they travel faster than the speed of the sound.

5. Look again at the experiment in which two microphones are used. Which of thesemethods would not give a more accurate measurement of the speed of sound?A Repeat the measurement 10 times and find the average speed.B Move the microphones further apart.C Make a louder sound.


XXIX John makes a musical instrument using 5 sticks and a block ofwood. To make a sound, he pushes a stick down and lets it go.Explain why the stick makes a sound.

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________This answer is worth 5 points.

Material Speed of sound (m/s)

Vacuum Does not travel

Air 330 m/sWater 1500 m/s

Metal 5000 m/s

Score 10

Score 5


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XXX Susan and Allan wrapped an alarm clock in different materials to see how many layersthey needed before they couldnt hear the clock any more. They drew a bar chart of theirresults. Look at the bar chart and answer the questions below.

1. Which was the best insulator? ____________________________________________2. Explain why this is so. __________________________________________________

______________________________________________________________________

_______________________________________________________ _______________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

Answer to question 1 is worth 2 points. Answer to question 2 is worth 5 points.

XXXI Which of these statements are true (T) and which are false (F)?Statement T or F

1. The vibration makes the air around vibrate.2. Sound cant travel throughsolids, like metal, stone and wood.3. A drum skin hit hard makes a soft sound.4. A tight drum skin gives a higher-pitched sound than a loose drum skin.5. Sound cant travel through a completely empty space (avacuum).6. The pitch of a sound is how strong or weak the sound is.7. Sound can travel through gases, like air.8. A drum skin hit gently makes a soft sound.9. Sound cant travel throughliquids, like water.10. A short string gives a higher-pitched sound than a long string when plucked.


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numberoflayers

material

bubble rap

newspaper

kitchen foil

thin cotton cloth

thick cotton cloth

Score 7

Score 10


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XXXII What type of sound do these diagrams represent? Put a letter in the box.

A B High-pitched and loud Low-pitched and loud

C D High-pitched and quiet Low-pitched and quiet


Score 8

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y5 Peek at the Week Science and Enquiry