Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 904 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
2. 2.⚖️ 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 tape (c) distance it travels (d) the same string
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a balloon (d) a drinking straw
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
5. 5.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
6. 6.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
7. 7.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) sticky tape
12. 12.True or false: water from the oars goes backward. (a) True (b) False
13. 13.True or false: the rowing boat goes backward. (a) True (b) False
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) the same tape (d) distance it travels
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
16. 16.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a magnet (d) a battery cell
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a long string (d) a balloon
18. 18.True or false: the swimmer goes forward. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) two chairs (d) a drinking straw
21. 21.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
22. 22.🧺 Do we need a long string 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: how big we blow it is the one thing we change. (a) False (b) True
24. 24.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) gas from the rocket
25. 25.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) water a swimmer pushes
26. 26.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) throw them away safely (d) give them to a baby
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
28. 28.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
29. 29.True or false: air from the balloon goes forward. (a) False (b) True
30. 30.⚖️ 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
31. 31.True or false: yeast is needed for the balloon rocket. (a) False (b) True
32. 32.True or false: gas from the rocket goes forward. (a) False (b) True
33. 33.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
35. 35.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
36. 36.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
37. 37.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
38. 38.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) a battery cell
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False

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