Q1. Fill in the blanks.
i. ________________are also called primary rocks.
ii. Gold, petroleum and coal are examples of_________________.
iii. The thinnest layer of the earth is ___________.
iv. Deccan plateau is made up of ______________rocks.
v. The Taj Mahal is made of ____________________.
i. There are two types of igneous rocks: intrusive rocks and extrusive rocks. __________
ii. Rocks which contain fossils are metamorphic rocks. __________
iii. Clay changes into slate and limestone into marble. __________
iv. It is constantly undergoing changes inside and outside. ___________
v. Grinding stones used to prepare paste/powder of spices and grains are made of sedimentary rock. ___________
vi. The earth, our homeland is a dynamic planet. ___________
Q3. Give an example of extrusive igneous rocks.
Q4. What is the radius of earth?
Q5. What is the core of the earth made up of?
Q6. What is the innermost layer of the earth?
Q7. Name the monument which is made of red sandstone?
Q8. What are the three layers of the earth?
Q9. What is crust?
Q10. What is the uppermost layer of the Earth called?
Q11. What is the Latin word for igneous?
Q12. What is the Latin word for sedimentary?
Q13. What is the Greek word for metamorphic?
Q14. What are the main mineral constituents of the continental mass?
Q15. What is a rock?
Q16. Name three types of rocks.
Q17. How much of the earth is crust, mantle and core?
Q18. What makes up the crust of the earth?
Q19. What are fossils?
Q20. What are metamorphic rocks?