Rock Cycle 
THIRD GRADE
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1. Igneous rocks are formed when:

A. lava from a volcano cools
B. particles are cemented together
C. pressure and temperature inside the Earth changes a rock
D. lakes dry up

2. Sedimentary rocks are formed when:

A. lava from a volcano cools
B. particles are cemented together
C. pressure and temperature inside the Earth changes a rock
D. temperature melts a rock

3. Metamorphic rocks are formed:

A. when lava from a volcano cools
B. particles are cemented together
C. pressure and temperature inside the Earth changes a rock
D. when lakes dry up

4. Fossils are usually formed in:

A. igneous
B. sedimentary
C. metamorphic
D. all types of rocks

5. Johnny was walking along the beach and found a rock. The rock had layers and looked like it was made of sand. What type of rock would it probably have been?

A. igneous
B. sedimentary
C. metamorphic
D. granite

6. Tasha went hiking in the mountains. She found a grey rock that had a lot of holes in it. The rock was very hard and no mineral crystals could be seen. What type of rock would it probably have been?

A. igneous
B. sedimentary
C. metamorphic
D. not enough information

7. Jose found a shiny rock that looked like it was squished. The minerals were lined up in layers. What type of rock would it probably have been?

A. igneous
B. sedimentary
C. metamorphic
D. granite

8. Rocks can be _______________.

A. melted
B. eroded
C. put under pressure
D. all of the above

9. Fossils represent __________________.

A. the hard parts that remain when an organism dies
B. plastic remains
C. a living plant
D. a toy

10. Which of the following are examples of crystals. (There can be more than one answer).

A. B. C.

For the following, state whether the statement is true or false.

11. ______________ All crystals are minerals.

12. ______________ The three types of rocks are igneous, sedimentary, and metamorphic.

13. ______________ An element is more than one compound.

Name the following crystal shapes.




14.__________________


15.___________________


16.__________________

 

ANSWERS: 1.(A); 2.(B); 3.(C); 4.(B); 5.(B); 6.(D); 7.(C); 8.(D); 9.(A); 10.(A and D); 11. False, crystals can be minerals or organic, like sugar; 12. True; 13. False, a compound is more than one element; 14. cubic; 15. rhombohedron; 16. diamond or dipyramid 

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