81

Lesson 81 of 84 ยท Spacetime

Experimentโญ 30 XP๐Ÿš€ Starbase

Succession: How Ecosystems Change (Part 2)

๐ŸงชLab Brief #81

Spacetime.

๐ŸŽฏ Your mission

Predict it first. Then prove yourself right (or wrong).

โšก The twist

The light you see now started its trip a long time ago.

๐Ÿคฏ

Mind = Blown

๐ŸŒŒ If you could drive a car straight up at highway speed, you'd reach space in under an hour.

๐Ÿ”ฎ

Make a hypothesis first

Guess: how big does that look from here vs. from there?

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

  • prey
  • ecosystem

Materials Needed

  • plastic wrap
  • ruler
  • magnifying glass
  • paper towels
  • markers
  • tape

Safety First

  • Use materials only as directed in the experiment.
  • Keep small objects away from young children.

Steps

Step 1 โ€” Read

Study the diagram and label the parts you recognize.

Step 2 โ€” Do

Model natural selection: scatter colored paper scraps on grass. Time how long it takes a partner to pick up each color. Which color survived longest? Why?

Step 3 โ€” Observe

Draw a detailed diagram of what you observe.

Step 4 โ€” Record

Write a conclusion: what did your results show? Did they match your prediction?

Check Your Understanding

Question 1

1 of 3

What is a habitat?

๐ŸŒ

Where you see this in real life

GPS, weather forecasts, and the seasons all rely on this.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Find a constellation in the sky. Look it up. Tell someone its story.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œIf you could visit any planet, which would you pick and why?โ€

๐ŸŽฏ

Next Smart Experiment

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

๐Ÿฆ Share card

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

๐Ÿ–จ๏ธ

Checkout complete lesson on Spacetime for 9th Grade

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