Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 818 · 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.🛟 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
2. 2.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) a long string
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
5. 5.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
6. 6.True or false: the rocket goes backward. (a) True (b) False
7. 7.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
8. 8.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
9. 9.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
11. 11.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) water a swimmer pushes (d) the rowing boat
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) two chairs (d) sticky tape
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
16. 16.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
17. 17.True or false: the swimmer goes backward. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a magnet (d) turmeric powder
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
20. 20.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a drinking straw (d) a battery cell
21. 21.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the balloon (d) the rocket
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) yeast (d) a long string
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
25. 25.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) a balloon (d) a drinking straw
27. 27.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
29. 29.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rocket (d) water a swimmer pushes
30. 30.True or false: the swimmer goes forward. (a) False (b) True
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) a magnet
32. 32.True or false: yeast is needed for the balloon rocket. (a) True (b) False
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
34. 34.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a battery cell (c) a drinking straw (d) sticky tape
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
37. 37.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) yeast (d) a mirror
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
40. 40.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed

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