Lesson 63 of 84 ยท Properties of Matter
Lessonโญ 30 XP๐งช Potion KitchenConductors and Insulators (Part 2)
Properties of Matter.
๐ฏ Your mission
Master the concept. Use it tomorrow.
โก The twist
Mixing two safe things doesn't always make a safe thing.
Mind = Blown
๐ง Hot water can freeze faster than cold water under the right conditions. Nobody fully understands why.
Make a hypothesis first
Predict: will the mixture get hotter, colder, or stay the same?
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
- melting point
- freezing point
- gas
Steps
Read the introduction and identify the main idea of this lesson.
Heat ice and record the temperature every minute as it melts and then boils. Graph the temperature changes and label each phase change.
Note any unexpected results and think about why they happened.
Share your findings with the class or a partner and discuss what you learned.
Check Your Understanding
Question 1
1 of 3What is the boiling point of water in Celsius?
Where you see this in real life
Your toothpaste, your soap, even your breakfast involves this.
Stretch Challenge
Try this in real life this week.
Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.
For the dinner table
โWhat's something we cook that mixes things together this way?โ
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Properties of Matter for 4th Grade
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