Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 364 · 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.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
2. 2.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
5. 5.True or false: water from the oars goes forward. (a) False (b) True
6. 6.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
8. 8.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) water a swimmer pushes
9. 9.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a magnet (d) a battery cell
10. 10.True or false: air from the balloon goes backward. (a) True (b) False
11. 11.True or false: the rocket goes backward. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same straw
13. 13.True or false: the swimmer goes backward. (a) True (b) False
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
15. 15.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a drinking straw (d) a long string
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
19. 19.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
20. 20.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) air from the balloon
21. 21.True or false: air from the balloon goes forward. (a) False (b) True
22. 22.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
24. 24.True or false: gas from the rocket goes backward. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ 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 measure it (c) we change it
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
28. 28.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) vinegar
32. 32.⚖️ 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 same tape
33. 33.🛟 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
36. 36.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
37. 37.True or false: vinegar 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.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ 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 same string

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