Grade 7 Earth Science Assessment

Which of the following is an example of a physical change involving color?

• Rusting of metal

• Painting a wall

• Dying hair

• Baking a cake

What type of rock forms below Earth's surface and has large crystals?

• Extrusive igneous

• Chemical sedimentary

• Intrusive igneous

• Metamorphic

Which natural process involves the settling of eroded materials in layers?

• Weathering

• Erosion

• Compaction

• Deposition

How are volcanic islands typically formed?

• Two continental plates converging

• Two oceanic plates diverging

• Transform boundaries sliding

• Oceanic plate subducting under continental plate

In an exothermic reaction, what happens to thermal energy?

• It is absorbed

• It remains constant

• It is released

• It is transformed into mass

What type of boundaries form mid-ocean ridges?

• Transform boundaries

• Convergent boundaries

• Divergent boundaries

• Subduction boundaries

Which is an example of chemical weathering?

• Wind erosion

• Acid rain affecting rocks

• Water freezing in cracks

• Rock fragments breaking apart

What happens when concentration increases in a chemical reaction?

• The reaction slows down

• Fewer collisions occur

• The temperature decreases

• More products are produced

Which of these is an example of an endothermic reaction?

• Rusting of iron

• Burning wood

• Photosynthesis

• Cellular respiration

What type of sedimentary rock is formed from marine organisms and their shells?

• Biochemical sedimentary

• Chemical sedimentary

• Clastic sedimentary

• Metamorphic sedimentary