Conductors and Insulators

What You'll Learn

Plasmas form when gases are heated to extremely high temperatures, stripping electrons from atoms. Stars, lightning, and neon signs all contain plasma.

Key Words

freezing
boiling

Materials Needed

baking soda
cups
spoons

Safety First

Use materials only as directed in the experiment.

Steps

Step 1 — Read

Read the introduction and identify the main idea of this lesson.

Step 2 — Do

Heat ice and record the temperature every minute as it melts and then boils. Graph the temperature changes and label each phase change.

Step 3 — Observe

Note any unexpected results and think about why they happened.

Step 4 — Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What is the boiling point of water in Celsius?