Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 252 · 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: the same string is kept the same. (a) True (b) False
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a magnet (d) a long string
3. 3.True or false: the swimmer goes backward. (a) False (b) True
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) vinegar (c) a balloon (d) two chairs
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) vinegar (d) two chairs
6. 6.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
8. 8.True or false: a long string is needed for the balloon rocket. (a) False (b) True
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
10. 10.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) gas from the rocket
13. 13.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the balloon (d) air from the balloon
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
15. 15.⚖️ 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 slope of the string
16. 16.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
17. 17.True or false: the swimmer goes forward. (a) False (b) True
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a balloon (d) a magnet
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
22. 22.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
23. 23.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) distance it travels (c) the same tape (d) how big we blow it
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
26. 26.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a magnet (d) sticky tape
32. 32.True or false: the rowing boat goes backward. (a) False (b) True
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) a battery cell
34. 34.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the slope of the string (d) the same tape
36. 36.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the balloon (d) the rowing boat
37. 37.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same tape (c) how big we blow it
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) a balloon
40. 40.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed

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