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Lesson 67 of 84 ยท Chemical Reactions

Lessonโญ 30 XP๐Ÿงช Potion Kitchen

Viscosity of Liquids (Part 2)

๐ŸงชLab Brief #67

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

Viscosity measures how easily a liquid flows. Thick liquids like honey and syrup have high viscosity and pour slowly, while thin liquids like water have low viscosity and flow quickly.

Key Words

Tap a word to see its definition.

Steps

Step 1 โ€” Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 โ€” Do

Conduct a chromatography experiment: use a coffee filter and markers to separate the pigments in different colored inks.

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

Which state of matter has a definite shape and volume?

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Where you see this in real life

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

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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€

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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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Viscosity of Liquids (Part 2) โ€” Chemical Reactions | 7th Grade Science | LittleActivity | LittleActivity