2. What might you see and hear during the eruption of a volcano?
An eruption happens when something bursts through a surface.
What might you see and hear during the eruption of a volcano?

3. What might an explorer find in the depths of the ocean?
The depths of something are its deepest parts.
What might an explorer find in the depths of the ocean?

4. gradually
Something that happens gradually happens very slowly over time.
Which of these events happens gradually – a pond warming up in the sun, or a bolt of lightning striking a tree?

5. How could a puppy hiding under a blanket be revealed?
When something is revealed, it was hidden but can now be seen.
How could a puppy hiding under a blanket be revealed?

6. What might cause a snail to contract into its shell?
To contract means to get smaller by shrinking.
What might cause a snail to contract into its shell?

7. What is an example of a constant sound?
If something is constant, it happens without stopping.
What is an example of a constant sound?

8. immediate An immediate event is one that happens right away.
How would you feel if you said “Hi” to someone and did not get an immediate response?