Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 437 · 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 “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a battery cell (d) sticky tape
3. 3.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
4. 4.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
5. 5.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) two chairs (d) a long string
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
8. 8.True or false: water a swimmer pushes goes backward. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a mirror (d) a balloon
11. 11.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
13. 13.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
14. 14.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
15. 15.🛟 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
16. 16.True or false: the balloon goes forward. (a) True (b) False
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) vinegar
19. 19.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
20. 20.⚖️ 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 tape (c) how big we blow it (d) the same straw
21. 21.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) air from the balloon
22. 22.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
23. 23.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
24. 24.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
27. 27.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
28. 28.⚖️ 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
29. 29.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) water from the oars
30. 30.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the rocket
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
32. 32.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
33. 33.True or false: air from the balloon goes backward. (a) True (b) False
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
35. 35.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
37. 37.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
38. 38.True or false: water from the oars goes backward. (a) False (b) True
39. 39.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
40. 40.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids