4th Grade Science Review

Magnets have ______ that repel and attract each other.

• A. keys

• B. poles

• C. protons

• D. isotopes

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Libby is doing experiments with two different magnets. Magnet A can only attract thumbtacks that are up to 1 inch away from it. Magnet B can attract thumbtacks that are up to 3 inches away from it.

What is likely true of the magnets?

• A. Magnet A is stronger than magnet B.

• B. Magnet B is rectangular, and magnet A is shaped like a horseshoe.

• C. Magnet B is stronger than magnet A.

• D. Magnet A is rectangular, and magnet B is shaped like a horseshoe.

Tags

NGSS.MS-PS2-3

Magnetism is an example of ______ because it is able to push and pull things.

• A. a law

• B. gravity

• C. matter

• D. a force

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Erosion by wind and water can move pieces of soil and rock.

As these materials settle on top of each other, they are pressed together, forming _______.

• A. metamorphic rock

• B. fossils

• C. sedimentary rock

• D. igneous rock

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_______ form when one kind of rock changes into another due to changing temperature and pressure.

• A. Sedimentary rocks

• B. Igneous rocks

• C. Glaciers

• D. Metamorphic rocks

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Which rock type can be formed by adding heat and pressure to any of the three types of rock?

• A. metamorphic rock

• B. igneous rock

• C. sand

• D. sedimentary rock

_______ form when magma or lava cools down and becomes solid

• A. Sedimentary rocks

• B. Metamorphic rocks

• C. Glaciers

• D. Igneous rocks

Bradley hit a baseball with a bat. The baseball then hit a window and caused the window to break. Where did the energy that broke the window come from?

• A. The energy came from waves in the air.

• B. The energy came from electricity in the glass.

• C. The energy came from gravity.

• D. The energy came from the moving bat and ball.

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Which type of energy needs a circuit to flow through?

• A. electrical energy

• B. sound energy

• C. heat energy

• D. light energy

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Electrical energy is the movement of electric charges through a material. When charges are moving through a material, such as a wire, they can also produce _______ energy, which makes the wire feel warm.

• A. heat

• B. magnetic

• C. light

• D. motion

Tags

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