Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 262 · 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.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
2. 2.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) water a swimmer pushes (d) air from the balloon
5. 5.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
8. 8.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) vinegar (d) a long string
10. 10.🛟 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
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
12. 12.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
13. 13.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a drinking straw (d) a battery cell
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.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) two chairs (d) a balloon
16. 16.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
18. 18.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
19. 19.🔮 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
20. 20.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
21. 21.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
22. 22.True or false: water a swimmer pushes goes forward. (a) False (b) True
23. 23.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) gas from the rocket (d) the balloon
25. 25.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a balloon (c) sticky tape (d) two chairs
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
30. 30.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
31. 31.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
33. 33.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
36. 36.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
37. 37.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
38. 38.True or false: water from the oars goes forward. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.⚖️ 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) how big we blow it (c) the same straw (d) the same tape

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