73

Lesson 73 of 84 ยท Spacetime

Experimentโญ 30 XP๐Ÿš€ Starbase

The Cell and Its Organelles (Part 2)

๐ŸงชLab Brief #73

Spacetime.

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

โšก The twist

Up there, the rules of down here stop working.

๐Ÿคฏ

Mind = Blown

๐Ÿช A day on Venus is longer than a year on Venus.

๐Ÿ”ฎ

Make a hypothesis first

Predict: what would happen on the moon vs. on Earth?

What You'll Learn

Cells are the smallest units of life, and each one contains tiny structures called organelles that carry out specific jobs. The nucleus stores genetic information, the mitochondria release energy, and the cell membrane controls what enters and leaves the cell.

Key Words

Tap a word to see its definition.

Materials Needed

  • cotton balls
  • zip-lock bags
  • labels
  • seeds
  • soil
  • cups

Safety First

  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.

Steps

Step 1 โ€” Read

Look at the vocabulary words and write a definition for each in your own words.

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

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What do plants need to make food through photosynthesis?

๐ŸŒ

Where you see this in real life

Every sunrise and every shadow is this idea in action.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Look at the moon tonight. Notice its shape. Look again in 3 days.

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.

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Checkout complete lesson on Spacetime for 9th Grade

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

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