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Third Grade

Science: In third grade, students learn that science is exciting, fun, and that there is a process to follow.

Isopods What's the Matter?

Isopods

Third graders learn at the beginning of the year that isopods may look like insects when you uncover their hiding places under rocks, but they're not. Isopods are relatives of crabs and lobsters but they live on land. They are easy to raise and wonderful to observe.

Students learn all about isopods in a hands-on environment. They collaborate in their thinking and observations then draw conclusions. Documenting observations is an important part of science. The scientific process guides their teaching and learning.

Students try and determine what isopods need to eat
Photos taken by Webographer Kelsey

Documenting observations is important Notes help students to draw conclusions
Isopods may be small but they are fun When they crawl on your arm, they tickle

Pictures taken by Webographer Jeremy

What's the Matter?

Third graders are learning the difference between solids, liquids and gases. These are also known as the phases of matter. They watch teacher demonstrations to learn the differences between physical and chemical changes. 

Click in the box below to find out what phase change the graphic represents!

The ice cube has been
left out on the counter
for too long!

It snowed today
and we made a
snowman out
of the fluffy white crystals!

The puddle disappears.

A storm cloud forms
in the sky.
Phase Change Answers

This Ice Cube is changing from a solid to a liquid.  It is melting.

This snowman is made from snow which is water that has changed from a liquid to a solid. It is freezing.

The puddle will dry up in the hot sun.  It will go from a liquid to a gas in the air. This is called evaporation.

This cloud is formed when gases in the air are cooled into liquid.  Later the liquid will fall as rain.  This is called condensation.

 

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