Lesson 39 of 84 · Spacetime
Lesson⭐ 30 XP🚀 StarbaseHow the Immune System Works
Spacetime.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
The light you see now started its trip a long time ago.
Mind = Blown
🌌 If you could drive a car straight up at highway speed, you'd reach space in under an hour.
Make a hypothesis first
Guess: how big does that look from here vs. from there?
What You'll Learn
The immune system defends the body by finding and destroying harmful invaders such as bacteria and viruses. White blood cells hunt down germs, and after fighting an illness the body can remember it and respond faster the next time.
Key Words
Tap a word to see its definition.
Steps
Review the background information on Spacetime before starting.
Collect and classify 10 organisms from your yard into kingdoms, phyla, or groups. Use a dichotomous key if available.
Look for patterns in your observations.
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What is germination?
Where you see this in real life
GPS, weather forecasts, and the seasons all rely on this.
Stretch Challenge
Try this in real life this week.
Find a constellation in the sky. Look it up. Tell someone its story.
For the dinner table
“If you could visit any planet, which would you pick and why?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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