64

Lesson 64 of 84 ยท Chemical Reactions

Experimentโญ 30 XP๐Ÿงช Potion Kitchen

Mass and Volume (Part 2)

๐ŸงชLab Brief #64

Chemical Reactions.

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

โšก The twist

Mixing two safe things doesn't always make a safe thing.

๐Ÿคฏ

Mind = Blown

๐ŸŒˆ Every color you see is your brain inventing a translation of light frequencies.

๐Ÿ”ฎ

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

Step 1 โ€” Read

Review the background information on Chemical Reactions before starting.

Step 2 โ€” Do

Test 5 household liquids (vinegar, milk, lemon juice, baking soda water, soap) with pH paper. Classify each as acid, base, or neutral.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What holds atoms together in a molecule?

๐ŸŒ

Where you see this in real life

This is happening in your kitchen right now โ€” every time food cooks.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Find one ingredient in a snack and look up what it does.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's something we cook that mixes things together this way?โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐ŸงชShare card

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Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

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.

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Mass and Volume (Part 2) โ€” Chemical Reactions | 7th Grade Science | LittleActivity | LittleActivity