Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 56 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a balloon (d) a battery cell
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.🔮 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
5. 5.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) gas from the rocket (d) the balloon
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) a drinking straw (d) a long string
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
9. 9.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
12. 12.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) vinegar (d) a balloon
16. 16.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
17. 17.⚖️ 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) the slope of the string (c) distance it travels
18. 18.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the rowing boat (d) the balloon
19. 19.True or false: water a swimmer pushes goes forward. (a) True (b) False
20. 20.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
21. 21.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the swimmer (d) the rocket
22. 22.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
23. 23.⚖️ 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 slope of the string (c) the same string (d) how big we blow it
24. 24.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rowing boat (d) the balloon
26. 26.🧺 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
27. 27.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
28. 28.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) sticky tape (c) vinegar (d) a magnet
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) turmeric powder
31. 31.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
34. 34.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: the swimmer goes backward. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False

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