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Lesson 10 of 84 ยท Chemical Reactions

Lessonโญ 30 XP๐Ÿงช Potion Kitchen

The Periodic Table of Elements

๐ŸงชLab Brief #10

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

The periodic table organizes elements by their properties. Elements in the same column (group) have similar characteristics, such as the noble gases which rarely react.

Key Words

  • isotope
  • chemical bond
  • molecular formula

Steps

Step 1 โ€” Read

Study the diagram and label the parts you recognize.

Step 2 โ€” Do

Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.

Step 3 โ€” Observe

Use your senses (except taste) to describe what you notice.

Step 4 โ€” Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

What are elements organized in?

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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.

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Share this experiment

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

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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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The Periodic Table of Elements โ€” Chemical Reactions | 7th Grade Science | LittleActivity | LittleActivity