Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 291 · 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.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) air from the balloon (d) water a swimmer pushes
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a long string (d) a magnet
3. 3.True or false: gas from the rocket goes forward. (a) False (b) True
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
5. 5.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) sticky tape (d) a balloon
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
13. 13.⚖️ 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
14. 14.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
15. 15.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
16. 16.True or false: water from the oars goes backward. (a) False (b) True
17. 17.🔮 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
18. 18.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) a battery cell
20. 20.⚖️ 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 tape
21. 21.⚖️ 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
22. 22.True or false: the rocket goes forward. (a) True (b) False
23. 23.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
25. 25.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
26. 26.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same straw (d) how big we blow it
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a long string (d) a drinking straw
29. 29.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) water a swimmer pushes
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) yeast (d) a balloon
31. 31.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ 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 string (c) how big we blow it (d) the same tape
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a battery cell (d) a mirror
34. 34.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
36. 36.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a balloon (d) two chairs
39. 39.True or false: the rocket goes backward. (a) True (b) False
40. 40.⚖️ 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 keep it the same (c) we change it

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