Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 442 · 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.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
4. 4.True or false: gas from the rocket goes backward. (a) True (b) False
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a drinking straw (d) sticky tape
6. 6.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
8. 8.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
12. 12.True or false: water a swimmer pushes goes forward. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) distance it travels (d) the same straw
14. 14.True or false: the rowing boat goes backward. (a) False (b) True
15. 15.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
16. 16.True or false: the rocket goes backward. (a) True (b) False
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) a drinking straw
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a battery cell (d) a balloon
21. 21.🎈 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a long string (d) two chairs
24. 24.⚖️ 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
25. 25.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
26. 26.⚖️ 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 tape (c) how big we blow it (d) the same straw
27. 27.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
29. 29.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) vinegar (d) a mirror
30. 30.True or false: the balloon goes backward. (a) True (b) False
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
34. 34.True or false: water from the oars goes backward. (a) True (b) False
35. 35.🔮 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
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a long string (d) two chairs
37. 37.True or false: water from the oars goes forward. (a) True (b) False
38. 38.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the swimmer (d) the rowing boat
39. 39.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a magnet (d) a battery cell
40. 40.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the balloon (d) air from the balloon

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