Lesson 71 of 84 · Light Optics
Experiment⭐ 30 XP⚡ Spark LabProducers, Consumers, and Decomposers (Part 2)
Light Optics.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Predict: what happens if you double the force?
What You'll Learn
Wetlands like marshes and swamps filter water, prevent flooding, and provide habitat for many species. They are among the most productive ecosystems on Earth.
Key Words
- habitat
- population
- community
Materials Needed
- plastic wrap
- ruler
- magnifying glass
Safety First
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
Steps
Study the diagram and label the parts you recognize.
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.
Watch carefully for any changes and note the time.
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What happens to energy as it moves up a food chain?
Where you see this in real life
You use this every time you flip a light switch, ride a bike, or kick a ball.
Stretch Challenge
Try this in real life this week.
Time how long a small ball rolls down something, then change the slope and try again.
For the dinner table
“Show me something at home that uses this kind of energy.”
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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