46

Lesson 46 of 84 ยท Chemical Reactions

Lessonโญ 30 XP๐Ÿงช Potion Kitchen

Acids and Bases (Part 2)

๐ŸงชLab Brief #46

Chemical Reactions.

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

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

Acids have a pH below 7 and taste sour, while bases have a pH above 7 and feel slippery. A pH of 7 is neutral, like pure water.

Key Words

  • isotope
  • chemical bond
  • molecular formula

Steps

Step 1 โ€” Read

Read about Chemical Reactions and write down three key facts.

Step 2 โ€” Do

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.

Step 3 โ€” Observe

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What happens to water when it freezes?

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Where you see this in real life

Your toothpaste, your soap, even your breakfast involves this.

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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.

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

Share this experiment

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