Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 958 · 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.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
2. 2.🔮 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
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) yeast
5. 5.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
6. 6.True or false: the rocket goes backward. (a) True (b) False
7. 7.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) a battery cell (d) a magnet
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
11. 11.🔮 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
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (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) sticky tape (c) vinegar (d) a battery cell
18. 18.🎈 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
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) vinegar (d) yeast
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
21. 21.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
24. 24.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a drinking straw (d) a balloon
27. 27.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the rocket
28. 28.True or false: a long string is needed for the balloon rocket. (a) False (b) True
29. 29.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rowing boat
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
31. 31.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a battery cell (d) two chairs
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
33. 33.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a drinking straw (d) a balloon
35. 35.⚖️ 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) the same tape (d) how big we blow it
36. 36.⚖️ 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 measure it (c) we change it
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) sticky tape
38. 38.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the swimmer (d) gas from the rocket
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it

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