Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 448 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
2. 2.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
3. 3.True or false: a long string is needed for the balloon rocket. (a) False (b) True
4. 4.🔮 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 much farther (d) it goes less far
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) the same straw (d) how big we blow it
6. 6.True or false: the swimmer goes backward. (a) False (b) True
7. 7.True or false: air from the balloon goes forward. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ 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 string
11. 11.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a drinking straw (d) a balloon
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
14. 14.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🎈 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
17. 17.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
18. 18.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
19. 19.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: yeast is needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
23. 23.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
24. 24.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
25. 25.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
28. 28.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
31. 31.📘 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
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) yeast (d) a long string
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
34. 34.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) sticky tape (d) a drinking straw
36. 36.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
37. 37.🛟 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
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a mirror (d) a balloon
39. 39.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend

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