Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 137 · 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 a mirror for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a balloon (c) vinegar (d) a magnet
3. 3.True or false: the rowing boat goes backward. (a) True (b) False
4. 4.True or false: the rocket goes backward. (a) True (b) False
5. 5.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
7. 7.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) distance it travels (d) the same straw
9. 9.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
10. 10.True or false: a long string is needed for the balloon rocket. (a) True (b) False
11. 11.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a mirror (d) a long string
13. 13.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water a swimmer pushes (d) the rocket
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
17. 17.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) water a swimmer pushes (d) air from the balloon
18. 18.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ 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) False (b) True
22. 22.🛟 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
23. 23.🚀 Which of these goes forward? (a) the rowing boat (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
24. 24.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
25. 25.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
26. 26.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
27. 27.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
29. 29.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the swimmer (d) gas from the rocket
30. 30.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
31. 31.True or false: air from the balloon goes forward. (a) False (b) True
32. 32.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rocket (d) the rowing boat
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a balloon (d) a drinking straw
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
35. 35.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
36. 36.True or false: the swimmer goes backward. (a) True (b) False
37. 37.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
38. 38.⚖️ 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
39. 39.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
40. 40.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) gas from the rocket (d) the balloon

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