Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 325 · 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.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
3. 3.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
4. 4.⚖️ 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
5. 5.True or false: the rowing boat goes forward. (a) False (b) True
6. 6.⚖️ 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) True (b) False
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) a magnet
8. 8.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
10. 10.True or false: the rocket goes backward. (a) True (b) False
11. 11.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) yeast (d) a drinking straw
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the balloon
14. 14.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) the same straw (d) how big we blow it
16. 16.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water a swimmer pushes
18. 18.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
19. 19.True or false: gas from the rocket goes forward. (a) True (b) False
20. 20.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) gas from the rocket (d) water a swimmer pushes
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) the same tape (c) how big we blow it
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) vinegar (d) a balloon
24. 24.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the same tape (d) how big we blow it
26. 26.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
28. 28.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
29. 29.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
30. 30.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the swimmer (d) the rocket
31. 31.True or false: water from the oars goes backward. (a) False (b) True
32. 32.🛟 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
33. 33.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
35. 35.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) water from the oars (d) the rowing boat
36. 36.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
37. 37.True or false: the rowing boat goes backward. (a) False (b) True
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a drinking straw (d) two chairs
40. 40.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops

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