66

Lesson 66 of 84 ยท Matter

Lessonโญ 30 XP๐Ÿงช Potion Kitchen

Endothermic and Exothermic Reactions (Part 2)

๐ŸงชLab Brief #66

Endothermic and Exothermic Reactions (Part 2).

๐ŸŽฏ Your mission

Master the concept. Use it tomorrow.

โšก The twist

Color changes mean atoms are rearranging โ€” even if you can't see them.

๐Ÿคฏ

Mind = Blown

๐Ÿงช If you could remove all the empty space from atoms, the entire human race would fit in a sugar cube.

๐Ÿ”ฎ

Make a hypothesis first

Before you mix: what color do you think it'll turn?

What You'll Learn

Matter exists in three common states: solid, liquid, and gas. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases fill any container.

Key Words

  • gas
  • solid

Steps

Step 1 โ€” Read

Read about Matter and write down three key facts.

Step 2 โ€” Do

Build a model of an atom using craft supplies. Show protons, neutrons, and electrons in the correct arrangement. Label each particle.

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 the three common states of matter?

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.

โšกShare 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 Matter for 3rd Grade

Get the full Matter track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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Endothermic and Exothermic Reactions (Part 2) โ€” Matter | 3rd Grade Science | LittleActivity | LittleActivity