Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 787 · 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.🎈 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
2. 2.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a mirror (c) two chairs (d) a long string
4. 4.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
5. 5.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
6. 6.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
7. 7.True or false: the rowing boat goes forward. (a) True (b) False
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
9. 9.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
10. 10.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
11. 11.True or false: air from the balloon goes forward. (a) False (b) True
12. 12.🔮 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
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
14. 14.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a long string (d) turmeric powder
15. 15.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
16. 16.🛟 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
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) vinegar (d) a drinking straw
18. 18.⚖️ 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
19. 19.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) water a swimmer pushes
20. 20.⚖️ 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 change it (c) we measure it
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
22. 22.True or false: the rocket goes backward. (a) True (b) False
23. 23.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
24. 24.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the balloon
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) two chairs (d) a mirror
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a magnet (d) a mirror
29. 29.⚖️ 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
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
31. 31.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
32. 32.⚖️ 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) how big we blow it (c) distance it travels (d) the same string
33. 33.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the balloon
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a battery cell (d) a long string
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same tape (d) the slope of the string
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
37. 37.⚖️ 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
38. 38.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) turmeric powder (d) a long string
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a battery cell (c) a balloon (d) two chairs

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