Volcanoes: Mountains of Fire (Part 2)

What You'll Learn

Volcanoes form where magma from the mantle reaches Earth's surface. Shield volcanoes have gentle slopes with flowing lava, while composite volcanoes are steep with explosive eruptions.

Key Words

sediment
igneous

Materials Needed

sand
clay
water

Safety First

Use materials only as directed in the experiment.
Keep small objects away from young children.

Steps

Step 1 — Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 — Do

Build a working model of a volcano using baking soda and vinegar. Observe the eruption and explain what causes real volcanic eruptions.

Step 3 — Observe

Draw a detailed diagram of what you observe.

Step 4 — Record

Write a conclusion: what did your results show? Did they match your prediction?

Check Your Understanding

Question 1

1 of 3

What is the difference between weather and climate?