Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 893 · 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? True or false: how big we blow it is the one thing we change. (a) False (b) True
2. 2.True or false: the rocket goes backward. (a) False (b) True
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
4. 4.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
5. 5.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
6. 6.🛟 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
7. 7.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same string (c) the same tape (d) distance it travels
9. 9.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) distance it travels (c) the slope of the string (d) the same tape
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) two chairs
13. 13.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) turmeric powder (d) two chairs
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a balloon (c) sticky tape (d) two chairs
15. 15.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a long string (d) a drinking straw
17. 17.True or false: a long string is needed for the balloon rocket. (a) False (b) True
18. 18.True or false: air from the balloon goes forward. (a) False (b) True
19. 19.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a drinking straw (c) a battery cell (d) vinegar
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) yeast (d) a magnet
23. 23.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a long string (d) a mirror
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) air from the balloon (d) the rocket
26. 26.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
27. 27.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
29. 29.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a magnet (d) sticky tape
31. 31.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
33. 33.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
39. 39.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
40. 40.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward

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