Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 189 · 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: a long string is not needed for the balloon rocket. (a) True (b) False
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same string
5. 5.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a balloon (d) sticky tape
7. 7.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
8. 8.⚖️ 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
9. 9.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
10. 10.⚖️ 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
11. 11.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
12. 12.True or false: the balloon goes backward. (a) False (b) True
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) sticky tape (d) a long string
14. 14.⚖️ 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
15. 15.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
16. 16.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a battery cell (d) two chairs
17. 17.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) gas from the rocket
18. 18.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the balloon
19. 19.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: the rowing boat goes forward. (a) False (b) True
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) a battery cell
23. 23.True or false: the rowing boat goes backward. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) sticky tape (d) a long string
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
26. 26.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
27. 27.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) a drinking straw (d) sticky tape
29. 29.True or false: the balloon goes forward. (a) False (b) True
30. 30.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
31. 31.🛟 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
32. 32.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a balloon (d) a drinking straw
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
35. 35.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) a balloon (d) two chairs
37. 37.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up

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