Lesson 38 of 84 ยท Chemical Reactions
Experimentโญ 30 XP๐งช Potion KitchenStates of Matter: Gas All Around Us (Part 2)
Chemical Reactions.
๐ฏ Your mission
Run the experiment. Find out what really happens.
โก The twist
If it bubbles, something invisible is escaping.
Mind = Blown
๐ง Hot water can freeze faster than cold water under the right conditions. Nobody fully understands why.
Make a hypothesis first
Guess: will the fizz be loud, soft, or none at all?
What You'll Learn
When matter changes state, its particles move differently. Heating a solid makes particles vibrate faster until they break free and become a liquid, then a gas.
Key Words
- proton
- neutron
- electron
Materials Needed
- cups
- spoons
- food coloring
- plastic bottles
- balloons
Safety First
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
- Be careful with scissors โ ask an adult for help if needed.
Steps
Read the introduction and identify the main idea of this lesson.
Create a density column: carefully layer honey, dish soap, water, vegetable oil, and rubbing alcohol in a tall glass. Drop small objects in to test where they float.
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What happens to particle motion when matter is heated?
Where you see this in real life
This is happening in your kitchen right now โ every time food cooks.
Stretch Challenge
Try this in real life this week.
Find one ingredient in a snack and look up what it does.
For the dinner table
โWhat's something we cook that mixes things together this way?โ
Next Smart Experiment
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Checkout complete lesson on Chemical Reactions for 7th Grade
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