Grade 2 Science Worksheet: Volcanoes & Tsunamis for 9-Year-Olds — 30 Questions (Fill-in, MCQ, Matching, True/False)

Instructions

Read each question carefully and choose the best answer. You will learn about the amazing power of volcanoes and tsunamis!

Part 1: True or False

Read each sentence. Circle True if the statement is correct or False if it is incorrect.

1. Lava is cold rock that flows from a volcano. True / False
2. An earthquake under the ocean can cause a tsunami. True / False
3. A dormant volcano is one that has erupted recently. True / False
4. Tsunamis are just one single, giant wave. True / False
5. Shield volcanoes are very tall and have steep sides. True / False
6. Hot liquid rock inside the Earth is called magma. True / False
7. You should go to the beach to watch if you hear a tsunami warning. True / False
8. Volcanoes are found on every continent, even Antarctica. True / False
9. Tsunami waves can travel across the ocean as fast as a jet plane. True / False
10. Composite volcanoes are often called stratovolcanoes. True / False

Part 2: Fill in the Blanks

Complete each sentence using one of the words from the box below.

11. When a volcano explodes and sends out ash and rock, we say it has ______.
12. A tsunami is a powerful series of ocean ______.
13. The hot, melted rock that flows down the side of a volcano is called ______.
14. A sudden and violent shaking of the ground is known as an ______.
15. When ______ cools and hardens, it can form new land and islands.

Part 3: Multiple Choice Questions

Circle the letter of the best answer for each question.

16. What is the hot liquid rock called when it is still inside the Earth?
    • A) Lava
    • B) Magma
    • C) Ash
17. Which of these is the main cause of a tsunami?
    • A) A big rainstorm
    • B) A strong wind
    • C) An underwater earthquake or volcanic eruption
18. Which type of volcano is wide and has gentle slopes, looking like a warrior's shield?
    • A) Shield Volcano
    • B) Cinder Cone Volcano
    • C) Composite Volcano
19. How are volcanic mountains formed?
    • A) By rivers carving out land
    • B) By layers of cooled lava and ash building up over time
    • C) By wind blowing sand into a pile
20. What is a common warning sign that a tsunami may be about to hit a coast?
    • A) The sky turns green
    • B) The ocean water suddenly pulls far back from the shore
    • C) It gets very quiet
21. Which type of volcano is tall and steep-sided, built from many layers of hardened lava, ash, and pumice?
    • A) Shield Volcano
    • B) Cinder Cone Volcano
    • C) Composite Volcano
22. As tsunami waves get closer to shallow water near the shore, they...
    • A) get smaller and slower.
    • B) get taller and slower.
    • C) get smaller and faster.
23. What is the simplest type of volcano, built from particles and blobs of lava ejected from a single vent?
    • A) Shield Volcano
    • B) Cinder Cone Volcano
    • C) Composite Volcano
24. What comes out of a volcano when it erupts?
    • A) Only lava
    • B) Only ash
    • C) Lava, ash, and gases
25. What is the bowl-shaped opening at the top of a volcano called?
    • A) A crater
    • B) A peak
    • C) A base

Part 4: Matching

Draw a line to match the word in Column A to its correct definition in Column B.

Answer Key

Part 1: True or False

1. False (Lava is hot, molten rock.)
2. True
3. False (A dormant volcano has not erupted for a long time but might again.)
4. False (A tsunami is a series of waves.)
5. False (Shield volcanoes have gentle slopes.)
6. True
7. False (You should move to higher ground immediately.)
8. True
9. True
10. True

Part 2: Fill in the Blanks

11. erupted
12. waves
13. lava
14. earthquake
15. lava

Part 3: Multiple Choice Questions

16. B) Magma
17. C) An underwater earthquake or volcanic eruption
18. A) Shield Volcano
19. B) By layers of cooled lava and ash building up over time
20. B) The ocean water suddenly pulls far back from the shore
21. C) Composite Volcano
22. B) get taller and slower.
23. B) Cinder Cone Volcano
24. C) Lava, ash, and gases
25. A) A crater

Part 4: Matching

26. Lava → E) Molten rock that has erupted onto the Earth's surface.
27. Tsunami → A) A series of huge ocean waves caused by an underwater disturbance.
28. Magma → C) Molten rock that is still located underneath the Earth's surface.
29. Earthquake → D) A sudden shaking of the ground.
30. Volcano → B) A mountain with a vent where molten rock erupts from the Earth's crust.