Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 557 · 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? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) distance it travels (d) the slope of the string
2. 2.⚖️ 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
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
4. 4.True or false: gas from the rocket goes forward. (a) True (b) False
5. 5.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
6. 6.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) gas from the rocket (d) water from the oars
7. 7.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a drinking straw (d) vinegar
9. 9.True or false: the swimmer goes backward. (a) True (b) False
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
11. 11.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
12. 12.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
13. 13.True or false: air from the balloon goes backward. (a) True (b) False
14. 14.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
15. 15.🛟 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
16. 16.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
18. 18.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
21. 21.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
22. 22.True or false: the balloon goes backward. (a) False (b) True
23. 23.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
24. 24.⚖️ 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 change it (c) we measure it
25. 25.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) vinegar (d) sticky tape
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
29. 29.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) vinegar (d) a mirror
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
32. 32.True or false: the rowing boat goes backward. (a) True (b) False
33. 33.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
34. 34.True or false: gas from the rocket goes backward. (a) False (b) True
35. 35.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True

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