Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 385 · 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? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
3. 3.⚖️ 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
4. 4.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
5. 5.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
6. 6.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
7. 7.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) the same tape (d) how big we blow it
9. 9.True or false: water a swimmer pushes goes forward. (a) False (b) True
10. 10.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) water from the oars (d) water a swimmer pushes
11. 11.True or false: water a swimmer pushes goes backward. (a) False (b) True
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) sticky tape (d) a mirror
13. 13.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
14. 14.🔮 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
15. 15.True or false: water from the oars goes backward. (a) True (b) False
16. 16.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a drinking straw (d) a magnet
19. 19.True or false: the rocket goes backward. (a) False (b) True
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
22. 22.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a magnet (d) sticky tape
24. 24.⚖️ 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
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rowing boat
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
27. 27.⚖️ 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
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) it stays still (d) straight down
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.True or false: the swimmer goes backward. (a) True (b) False
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a magnet (d) sticky tape
34. 34.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
38. 38.True or false: yeast is needed for the balloon rocket. (a) True (b) False
39. 39.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the rowing boat
40. 40.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed

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