55

Lesson 55 of 84 ยท Spacetime

Lessonโญ 30 XP๐Ÿš€ Starbase

Classifying Living Things (Part 2)

๐ŸงชLab Brief #55

Spacetime.

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

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

Living things are organized into levels: cells form tissues, tissues form organs, organs form organ systems, and organ systems make up a complete organism.

Key Words

  • metamorphosis
  • germination
  • pollination

Steps

Step 1 โ€” Read

Review the background information on Spacetime before starting.

Step 2 โ€” Do

Compare the skeletal structures of a bird wing, human arm, and whale flipper using diagrams. Identify homologous bones and write what this tells us about common ancestry.

Step 3 โ€” Observe

Note any unexpected results and think about why they happened.

Step 4 โ€” Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What do all living things have in common?

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

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 Spacetime for 9th Grade

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

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Classifying Living Things (Part 2) โ€” Spacetime | 9th Grade Science | LittleActivity | LittleActivity