Derek’s One Science File Third Grade 2008-2009. + 1.5 volts Battery - Electrical circuit

Derek’s One

Science

File Third Grade 2008-2009

+

1.5 volts

Battery

-

Electrical circuit

Heat

Electricalenergy

Soundenergy

Chemical

Light

Energy

Fuel

Gasoline Coal

Food

Wood

Chemicalenergy

How do we get energy?

• Most energy comes from the sun. First the sun goes to a leaf. Then animals or we eat the plant. If the animal eats it we eat the animal.

light

Yumm! Beef and milk

Physical change

Liquid

Gas

+Heat

+Heat

Solid

Periodic table of elements

Gravity

Helium lift

Gravity

Weight lower

This is a triple beam balance.

This is how you use it.

• All you do is place an item on the balance. We are weighing this metal basket.

• First you move the weights on the balance until the bar gets matched up with the line. Then add what the three weights circle and that’s how much the item weighs!

This is a graduated cylinder

• Graduated cylinders mature amounts of water.

The three states of mater

Record grooves

C.D grooves

Helium

• We use helium to blow up balloons. The only thing that is lighter than helium is hydrogen, but that burns.

hydrogen helium

This is why we don’t use hydrogen.

helium

Compass rose

Water has something called surface tension. It is like a skin of

water. Surface tension fools gravity and has dense things float.

This paper clip floats because of surface tension.

Argentine ant

Botany is the study of plants.

Distictis

Cotyledon

Embryo

Waves• Waves carry energy like if you drop

something in to water it creates waves

The ancient Greek thought these were the 4 elements…

FireEarth

Air

Water

Derek’s Plants

Mule Fat

Mule FatBaccharis Salicifolia

White FlowerPink Flower

Miner’s Lettuce

Miner’s LettuceClaytonia Perfoliata

White Flower

Western Cottonwood

Western CottonwoodPopulus DeltoidesRed Brown Flower

Green Flower

Black Sage

Black SageSalvia Mellifera Lavender FlowerPale Rose Flower

White Sage

White SageSalvia Apiana

White with Lavender Flower

Mohave Yucca

Mohave YuccaYucca Schidigera

Purple White Flower

San Diego SunflowerHulsea Californica

California Sunflower helianthus annuus

Barrel CactusFerocactus

Morning-Glorypyrus malus

Deer Weedurtica dioica L.

Wild-CucumberEchinocystis lobata

Coast live oakQuercus agrifolia Nee var

Nuttall’s Scrub Oak, Dodder, Monkey flower

Lupinus sp.

Mercury

Saturn

Venus

Halloween 2008 Friday

After on Monday

When there’s no moon

When there’s a moon

The main moon phases

New moon Waxing crescent First quarter Waxing gibbous

Full moon Waning gibbous Waning crescentLast quarter

E Dawn S W Dusk

Noon

The suns path

EastWest

Summer time

East West

Winter time

The winter sky

The Night Sky

12 inch Meade telescope

The Sky one night

The Orion Nebula

This is Kepler the rocket launching

This is Johannes Kepler.

The Big Dipper

Polaris is the north star and it's connected to the little dipper.

Tues. Mar. 31 for 3 minutes 7:46 pm N to ENE

Life in southern California

Mastodon

Tree Sloth

Rhea

Ornithopoda

Ground Sloth

Saber-tooth Cat