Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 968 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
3. 3.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
5. 5.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
6. 6.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
7. 7.True or false: water a swimmer pushes goes backward. (a) True (b) False
8. 8.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) water a swimmer pushes (d) water from the oars
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) two chairs (d) a drinking straw
10. 10.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same string (d) distance it travels
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) gas from the rocket (d) water a swimmer pushes
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
14. 14.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
15. 15.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
16. 16.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) a battery cell
18. 18.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
19. 19.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
20. 20.True or false: the rowing boat goes backward. (a) False (b) True
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
22. 22.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) air from the balloon
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: the swimmer goes forward. (a) False (b) True
32. 32.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) distance it travels (d) how big we blow it
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a magnet
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a drinking straw (d) a mirror
39. 39.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the balloon
40. 40.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward

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