In third grade students learn about interactions, relationships, relative motion, and cause and effect. They study the movement of Earth and the moon. They begin to learn of forces that move things; they learn of heat and light. Third graders observe, classify, predict, measure, and record.

Earth and Moon

Earth

Benchmark:  PDF – Earth orbits around the sun, and the moon orbits around Earth.  Earth is spherical in shape and rotates on its axis to produce the night and day cycle.  To people on Earth, this turning of the planet makes it appear as though the sun, moon, planets, and stars are moving across the sky once a day.  However, this is only a perception as viewed from Earth.

Science Language: Glossary – Vocabulary (EnglishSpanish)

Alive or Not?

Plants

Benchmark:  PDF – For any particular environment, some types of plants and animals survive well, some survive less well and some cannot survive at all. Organisms in an environment interact with their environment.  Models can be used to investigate these interactions.

Science Language: Glossary – Vocabulary (EnglishSpanish)

Force and Motion

 

Pulleys

Benchmark: PDF - Forces cause changes in the speed or direction of the motion of an object.  The greater the force placed on an object, the greater the change in motion.  The more massive an object is, the less effect a given force will have upon the motion of the object.  Earth’s gravity pulls objects toward it without touching them.

Science Language: Glossary – Vocabulary (EnglishSpanish)

Gravity

Gravity

Benchmark: PDF - Forces cause changes in the speed or direction of the motion of an object.  The greater the force placed on an object, the greater the change in motion.  The more massive an object is, the less effect a given force will have upon the motion of the object.  Earth’s gravity pulls objects toward it without touching them.

Science Language: Glossary – Vocabulary (EnglishSpanish)

Heat Energy

Sun

Benchmark: PDF - Light is produced by the sun and observed on Earth. Living organisms use heat and light from the sun. Heat is also produced from motion when one thing rubs against another. Things that give off heat often give off light. While operating, mechanical and electrical machines produce heat and/or light

Science Language: Glossary – Vocabulary (EnglishSpanish)

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