Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 488 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) turmeric powder (d) a balloon
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the same string
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) sticky tape (d) a balloon
5. 5.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
6. 6.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water from the oars
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
8. 8.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the balloon (d) the rowing boat
9. 9.True or false: the rocket goes forward. (a) False (b) True
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) yeast
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a balloon (d) a battery cell
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
14. 14.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
15. 15.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
16. 16.🚀 Which of these goes backward? (a) the rowing boat (b) water a swimmer pushes (c) the balloon (d) the swimmer
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
18. 18.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
20. 20.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
22. 22.True or false: the rocket goes backward. (a) False (b) True
23. 23.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
27. 27.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
28. 28.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
29. 29.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) water a swimmer pushes
30. 30.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
33. 33.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a magnet (d) sticky tape
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: water from the oars goes backward. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a mirror (d) a long string
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed

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