Balloon Rocket STEM Worksheet

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

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