Lesson 64 of 84 ยท Chemical Reactions
Experimentโญ 30 XP๐งช Potion KitchenMass and Volume (Part 2)
Chemical Reactions.
๐ฏ Your mission
Set it up. Test it. Be amazed.
โก The twist
Mixing two safe things doesn't always make a safe thing.
Mind = Blown
๐ Every color you see is your brain inventing a translation of light frequencies.
Make a hypothesis first
Predict: will the mixture get hotter, colder, or stay the same?
What You'll Learn
Distillation separates mixtures based on different boiling points. Heating salt water causes water to evaporate and condense, leaving salt behind and producing fresh water.
Key Words
- solubility
- concentration
- plasma
Materials Needed
- paper towels
- thermometer
- strainer
- ice cubes
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
Steps
Review the background information on Chemical Reactions before starting.
Test 5 household liquids (vinegar, milk, lemon juice, baking soda water, soap) with pH paper. Classify each as acid, base, or neutral.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What holds atoms together in a molecule?
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
We'll pick an experiment that matches exactly how you're thinking right now.
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Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Chemical Reactions for 7th Grade
Get the full Chemical Reactions track as a printable PDF โ all lessons, worksheets, and answer keys.
