Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 640 · 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: sticky tape is needed for the balloon rocket. (a) False (b) True
2. 2.True or false: water from the oars goes backward. (a) False (b) True
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a drinking straw (d) sticky tape
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a magnet (d) a mirror
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) two chairs (d) turmeric powder
8. 8.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
10. 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
11. 11.⚖️ 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 tape (c) the same string (d) the slope of the string
12. 12.⚖️ 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 string (c) the slope of the string (d) how big we blow it
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) yeast (c) a long string (d) two chairs
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a long string (d) a drinking straw
15. 15.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) water a swimmer pushes
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) vinegar (d) a balloon
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a battery cell (d) two chairs
18. 18.🛟 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
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
20. 20.⚖️ 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) False (b) True
21. 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
23. 23.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
24. 24.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
25. 25.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the balloon
26. 26.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) a magnet
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) two chairs (d) turmeric powder
29. 29.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
31. 31.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rocket (d) water a swimmer pushes
32. 32.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
33. 33.⚖️ 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
34. 34.True or false: air from the balloon goes forward. (a) True (b) False
35. 35.True or false: the swimmer goes backward. (a) False (b) True
36. 36.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) air from the balloon
38. 38.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: the rowing boat goes backward. (a) True (b) False
40. 40.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down

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