Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 54 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) sticky tape (d) two chairs
2. 2.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
4. 4.🛟 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
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) vinegar (d) a long string
6. 6.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a drinking straw (d) a long string
8. 8.True or false: air from the balloon goes backward. (a) True (b) False
9. 9.True or false: the swimmer goes backward. (a) False (b) True
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a magnet (c) two chairs (d) a drinking straw
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
14. 14.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the slope of the string
17. 17.True or false: water from the oars goes backward. (a) True (b) False
18. 18.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ 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 straw (c) distance it travels (d) the same string
20. 20.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ 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 same string
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) a mirror
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
24. 24.True or false: the swimmer goes forward. (a) False (b) True
25. 25.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water from the oars (d) the swimmer
26. 26.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
27. 27.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
28. 28.⚖️ 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 same tape
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a battery cell (d) sticky tape
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
31. 31.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
33. 33.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a long string (d) two chairs
35. 35.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
36. 36.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
37. 37.⚖️ 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) False (b) True
38. 38.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) turmeric powder
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False

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