25

Lesson 25 of 84 ยท Evolution

Simulationโญ 30 XP

Meiosis and Sex Cells (Part 2)

๐ŸงชLab Brief #25

Evolution.

๐ŸŽฏ Your mission

Play with the model. Break it. Understand it.

โšก The twist

Nature loves to surprise the careful watcher.

๐Ÿคฏ

Mind = Blown

๐Ÿ”ฌ The more you look, the more nature shows you.

๐Ÿ”ฎ

Make a hypothesis first

Before you start: write down what you think will happen, and why.

What You'll Learn

Meiosis is a special type of cell division that produces sex cells (gametes) with half the normal number of chromosomes. When egg and sperm unite, the full number is restored.

Key Words

Tap a word to see its definition.

Steps

Step 1 โ€” Read

Read about Evolution and write down three key facts.

Step 2 โ€” Do

Create a Punnett square to predict the offspring of two parents. Use a trait like eye color or seed shape. Calculate the probability of each outcome.

Step 3 โ€” Observe

Compare the before and after states.

Step 4 โ€” Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What is meiosis?

๐ŸŒ

Where you see this in real life

This shows up in your everyday life more than you'd think.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Try one experiment in real life this week โ€” even a tiny one.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's the most surprising thing you learned today?โ€

๐ŸŽฏ

Next Smart Experiment

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

๐Ÿ”ญShare 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 Evolution for 7th Grade

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

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Meiosis and Sex Cells (Part 2) โ€” Evolution | 7th Grade Science | LittleActivity | LittleActivity