Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 21 · 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.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
2. 2.True or false: the rowing boat goes forward. (a) False (b) True
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
4. 4.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) gas from the rocket (d) the rocket
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a magnet (d) a long string
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
9. 9.True or false: water from the oars goes backward. (a) False (b) True
10. 10.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a long string (d) a mirror
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
15. 15.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water from the oars
16. 16.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the balloon (d) air from the balloon
17. 17.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
18. 18.⚖️ 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 slope of the string (d) the same tape
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.True or false: the swimmer goes forward. (a) False (b) True
21. 21.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a mirror (d) two chairs
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a battery cell (d) sticky tape
23. 23.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
24. 24.True or false: the swimmer goes backward. (a) False (b) True
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) yeast (d) a long string
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a mirror
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
28. 28.True or false: yeast is needed for the balloon rocket. (a) True (b) False
29. 29.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
31. 31.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
35. 35.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
37. 37.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
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 straw
40. 40.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon

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