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結果 : what makes a catapult go farther
2:31

How to Build a Trebuchet | MythBusters

Science Channel
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0:50

How To Build A Catapult For School Project

Greg J
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Accurate Catapult With Popsicle Sticks

Physics Burns
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1:28

Design a Catapult

TeachEngineering
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5:37

Build a Catapult | Design Squad

Design Squad Global
442,451 回視聴 - 7 年前
3:58

100 ft + Catapult Project

TheRcMaker
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4:37

Young Engineers: Class 3 Catapult - Sturdy and Fun DIY Engineering Activity for Kids

STEM Inventions
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4:12

LONG RANGE Sticks Catapult | How to Build a mini catapult

Creative Crafts
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1:44

How to make a Mini Catapult

Mr Useful
118,047 回視聴 - 9 年前
3:56

Science Max | How to Make a Mini Catapult

Science Max - 9 Story
85,545 回視聴 - 2 年前
7:59

Catapult DIY

The Winkle
12,352 回視聴 - 3 年前
4:50

Young Engineers: Pyramid Catapult - Easy and Powerful DIY STEM Project for Kids

STEM Inventions
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How to Make a Catapult (2 MILLION SUBSCRIBERS!) | I Like To Make Stuff

I Like To Make Stuff
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13:00

How to Make a Spoon Catapult

homeofficethink
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8:50

3 Top Catapult Tips | Build your own

makeNplay
209 回視聴 - 5 年前
2:10

Build a Catapult

4SciFun
340,947 回視聴 - 8 年前
2:36

Popsicle Stick Catapult

stlDenise3D
611,277 回視聴 - 6 年前
3:13

Catapults

Plano Public Library
4,849 回視聴 - 4 年前
13:51

How 2 Build a Tabletop Catapult! (In an hour or less)

Duke Bros How 2
84,655 回視聴 - 7 年前
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How to Make a Popsicle Stick Catapult | STEM Activity

Science Buddies
145,382 回視聴 - 4 年前