Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 703 · 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 balloon (b) water from the oars (c) air from the balloon (d) gas from the rocket
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
3. 3.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
4. 4.True or false: water from the oars goes backward. (a) True (b) False
5. 5.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
6. 6.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) water from the oars
7. 7.⚖️ 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
8. 8.⚖️ 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) the same straw (c) distance it travels (d) how big we blow it
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) a long string
10. 10.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
12. 12.⚖️ 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
13. 13.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
15. 15.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
16. 16.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
17. 17.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) turmeric powder (d) two chairs
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) a long string
23. 23.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) a mirror
25. 25.⚖️ 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 string (c) how big we blow it
26. 26.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
28. 28.True or false: gas from the rocket goes backward. (a) False (b) True
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
30. 30.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
31. 31.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
33. 33.⚖️ 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
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
36. 36.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ 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
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
39. 39.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
40. 40.⚖️ 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

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