OUTDOOR MISSION

Gravity Drop Challenge

Topic 1.8 — Gravity: What Keeps Us Grounded

REAL SCIENCE EXPERIMENT

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Scout says: "Quick question, Rangers — if you drop a heavy rock and a light pebble at the same time, which one hits the ground first? Most people get this WRONG! Let's go outside and test it like real scientists."

🎒 What You Need

Big rock

Small pebble

Flat sheet of paper

Crumpled paper ball

Tennis ball

Feather or leaf

Coin

Ranger Field Journal

📋 How To Do It

Predict first! Before each drop, ask everyone: "Which object will hit the ground first?" Write your predictions in your Field Journal.
Hold both objects at the SAME height — eye level works great. Arms stretched out.
Count down: 3... 2... 1... DROP! Release both at the exact same moment. Do NOT throw them — just let go.
Watch and listen: Which one hits the ground first? Did it match your prediction?
Record results in your Field Journal. Then try the next round!

🧪 The 4 Rounds

Round	Object A		Object B	What Happens?
1	Big rock	vs	Small pebble	They land at the same time!
2	Tennis ball	vs	Coin	Same time again!
3	Flat paper	vs	Rock	Rock lands first! But why?
4	Crumpled paper	vs	Rock	Almost the same time!

The Science:

Gravity pulls ALL objects toward Earth at the same speed — no matter how heavy they are! A scientist named Galileo proved this over 400 years ago. So why did the flat paper fall slowly? Because of air resistance — the air pushes against the wide, flat shape. When you crumple the paper into a ball, it cuts through the air more easily and falls almost as fast as the rock!

Mind-Blowing Fact:

On the Moon, there is no air at all. An astronaut named David Scott dropped a feather and a hammer on the Moon in 1971 — they hit the ground at EXACTLY the same time! Search "Apollo 15 feather hammer drop" to watch the real video.

Journal Challenge: Draw a table in your Field Journal with columns for: Objects, Prediction (which lands first?), Result (what actually happened?), and Why? Fill it in for all 4 rounds. The "Why?" column is the most important — that's where real scientists think!