Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 468 · 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.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a magnet (d) two chairs
2. 2.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same string (c) how big we blow it (d) distance it travels
5. 5.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a mirror (d) two chairs
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) a drinking straw (d) a long string
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) how big we blow it (d) distance it travels
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
14. 14.True or false: water from the oars goes forward. (a) False (b) True
15. 15.🛟 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
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
17. 17.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
18. 18.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
19. 19.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a magnet (d) two chairs
21. 21.True or false: water a swimmer pushes goes backward. (a) False (b) True
22. 22.True or false: air from the balloon goes forward. (a) False (b) True
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.⚖️ 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) distance it travels (c) the slope of the string
28. 28.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
29. 29.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
30. 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
32. 32.🎈 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
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) yeast (d) a long string
34. 34.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water from the oars (d) the swimmer
35. 35.True or false: water a swimmer pushes goes forward. (a) True (b) False
36. 36.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
37. 37.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: a long string is needed for the balloon rocket. (a) False (b) True
39. 39.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the rowing boat (d) the balloon
40. 40.⚖️ 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

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