Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 58 · 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? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the slope of the string
2. 2.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
3. 3.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a battery cell (d) a magnet
4. 4.True or false: gas from the rocket goes backward. (a) True (b) False
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) vinegar (d) a balloon
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
8. 8.🎈 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
9. 9.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
11. 11.⚖️ 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
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the slope of the string (c) how big we blow it (d) distance it travels
14. 14.True or false: air from the balloon goes forward. (a) False (b) True
15. 15.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a battery cell (d) yeast
16. 16.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
17. 17.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) a drinking straw (d) sticky tape
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) two chairs (d) a mirror
23. 23.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rowing boat (d) the rocket
24. 24.True or false: air from the balloon goes backward. (a) True (b) False
25. 25.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) water from the oars (d) air from the balloon
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
28. 28.True or false: water a swimmer pushes goes backward. (a) True (b) False
29. 29.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
30. 30.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) turmeric powder (d) a long string
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a drinking straw (d) two chairs
33. 33.⚖️ 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 tape (d) how big we blow it
34. 34.True or false: yeast is needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a long string (d) a drinking straw
36. 36.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
38. 38.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
39. 39.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rocket (d) the swimmer
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) a balloon (d) a drinking straw

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