Matter and Magnets

MatterA. Every object that takes up space is made of

matter.

States of matterA. Matter can exists in different states: solid,

liquid, and gas.

Solid Liquid

Gas

Water exists as a solid, liquid and gas.

Phase changesA. To change between the different states of matter,

solid, liquid, and gas, water goes through phase changes.

Solid

Liquid

Gas

Phase changes can be caused by changes in temperature.

Water and phase changes video

Click on image to play video clip. 1 min. 41 sec.

Phase change experiment

Click on image to play video clip. 59 sec.

BoilingA. When water reaches

the boiling point, it changes from a liquid to a gas, commonly called steam.

Condensation video clip

Plays automatically. 51 sec.

EvaporationA. When water evaporates, it changes from liquid

water to a gas without boiling.

On a sunny day, water will quickly evaporate from this towel on the clothesline, and from the soil of the potted plant .

Evaporation as part of a cycleA. When water evaporates, it changes into a gas.

Evaporation is part of the water cycle. Water in the ocean evaporates and then forms clouds.

Freezing When the

temperature reaches the freezing point,water changes from a liquid state to a solid, commonly called ice.

MeltingWhen ice melts, it changes from a solid to a liquid.

Physical properties remain the same

A. Physical properties remain the same as the material is reduced in size.

B. As an ice cube melts, it remains the same substance. A piece of paper that is torn in half is still paper.

MassA. Mass is the amount

of matter an object holds.

B. Air has mass.

Matter has mass video

Plays automatically. 2 min. 19 sec.

VolumeA. As a balloon is

blown up, the volume of air increases.

Physical properties remain the sameA. Physical properties

remain the same as the material is reduced in size

B. When clay is cut into smaller pieces, the properties remain the same.

Physical properties remain the same

A. When a log is cut into smaller pieces, the properties remain the same.

Made of partsA. Materials are

composed of parts that are too small to be seen without magnification.

B. A vehicle, a plant, a grain of sugar, and adrop of ink are alike because they are all made of smaller parts.

Time to Test Your Knowledge!

The following slides contain

released SOL test items.

Question #1The picture shows a stick of clay.

When the clay was cut into pieces,which of these was the only thing that changed?

A. Its stickiness

B. Its softness

C. Its shape

D. Its color

Question #2Some children are making mud balls. They

cut the mud balls in half. Which of these changed when the mud balls were cut in half?

A. The softness of the mud ballB. The size of the mud ball C. The color of the mud ballD. The stickiness of the mud ball

Question #3Which of these is used mainly for the sense

of touch?

A. Eyes

B. Ears

C. Nose

D. Skin

Question #4Which of these will change when a piece of

wood is chopped into smaller pieces?

A. The weight of each piece

B. The hardness of each piece

C. The color of each piece

D. The grain of each piece

Question #5Which of these properties will change when

a rock is broken?

A. Its color

B. Its shape

C. Its hardness

D. Its texture

Question #6A car, a tree, a grain of sugar, and a drop

of ink are alike because they are all made of —

A. metal

B. sunlight

C. smaller parts

D. air and water

Question #7The picture best shows that air has —

A. mass

B. energy

C. oxygen

D. moisture

Question #8A compass shows directions because the

needle —

A. is magnetic

B. senses electricity

C. is made of metal

D. turns clockwise

Which of these can move a nail lying on a table without touching the nail?

A. A magnet

B. A string

C. A wire

D. A ruler

Question #9

When water evaporates, it changes

into a —

A. solid

B. mixture

C. gas

D. solution

Question #10

A piece of metal is probably a

magnet if it —

A. can pull some metals to it

B. has a dull metal color

C. becomes rusty in the rain

D. has the letter N on it

Question #11

Which of these changes the most as

a balloon is being blown up?

A. The temperature of the air outside of the balloon

B. The volume of air in the balloon

C. The kind of material that makes up the balloon

D. The mass of the material that makes up the balloon

Question #12

Magnets will stick to refrigerator

doors because the doors are —

A. painted with plastic

B. made of metal

C. easy to open

D. heavy

Question #13

Which of these is attracted to a magnet?

A. An iron nail

B. A copper penny

C. A silver spoon

D. An aluminum pan

Question #14

Question #15Which object will be attracted to a

magnet?

A. B. C. D.

Wow…. You are so smart!

Click on the button to

end this presentation.