75

Lesson 75 of 84 ยท Ecosystems

Lessonโญ 30 XP๐ŸŒฟ Wild Jungle

How Trees Make Oxygen (Part 2)

๐ŸงชLab Brief #75

Ecosystems.

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

โšก The twist

Every species solves the same problem differently.

๐Ÿคฏ

Mind = Blown

๐Ÿ™ An octopus has 9 brains and 3 hearts.

๐Ÿ”ฎ

Make a hypothesis first

Before you watch: what do you think it'll do?

What You'll Learn

All living things share basic characteristics: they grow, reproduce, respond to their environment, and need energy to survive. Plants make their own food through photosynthesis, while animals must eat other organisms.

Key Words

  • community
  • environment
  • nutrients

Steps

Step 1 โ€” Read

Review the background information on Ecosystems before starting.

Step 2 โ€” Do

Create a detailed food web for a local ecosystem. Include at least 8 organisms and use arrows to show energy flow from producers to top predators.

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 the main source of energy for most food chains?

๐ŸŒ

Where you see this in real life

Your own body is doing this thousands of times every second.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Find one thing about your body that's different from a friend's. Wonder why.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œTell me something you noticed about your own body today.โ€

๐ŸŽฏ

Next Smart Experiment

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

๐Ÿ”ฌShare 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 Ecosystems for 3rd Grade

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

View in Shop

Your Cart (0)

Your cart is empty

Browse our shop to find activities your kids will love

How Trees Make Oxygen (Part 2) โ€” Ecosystems | 3rd Grade Science | LittleActivity | LittleActivity