Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 321 · 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.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) how big we blow it (d) the same straw
5. 5.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
6. 6.True or false: the swimmer goes backward. (a) True (b) False
7. 7.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
9. 9.True or false: yeast is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) two chairs (d) a balloon
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a drinking straw (d) turmeric powder
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) sticky tape
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) vinegar (d) sticky tape
20. 20.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the swimmer (d) the rocket
21. 21.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the swimmer
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
24. 24.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
25. 25.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) a magnet (d) a mirror
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
27. 27.True or false: gas from the rocket goes forward. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
30. 30.🔮 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
31. 31.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) turmeric powder (d) a long string
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a balloon (d) sticky tape
36. 36.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
37. 37.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
38. 38.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
39. 39.⚖️ 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
40. 40.⚖️ 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) True (b) False

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