Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 747 · 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.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) a drinking straw (d) two chairs
3. 3.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water a swimmer pushes
4. 4.True or false: gas from the rocket goes forward. (a) True (b) False
5. 5.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
6. 6.🔮 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 less far (d) it goes much farther
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a battery cell (d) a balloon
8. 8.True or false: air from the balloon goes backward. (a) False (b) True
9. 9.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
10. 10.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
11. 11.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
12. 12.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.⚖️ 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
15. 15.⚖️ 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) the slope of the string (c) distance it travels (d) the same straw
16. 16.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a long string (d) two chairs
19. 19.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
20. 20.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the balloon
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
23. 23.🚀 Which of these goes backward? (a) the swimmer (b) gas from the rocket (c) the rocket (d) the rowing boat
24. 24.⚖️ 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
25. 25.🛟 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
26. 26.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
28. 28.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a balloon (d) sticky tape
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) a long string
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) distance it travels (d) how big we blow it
36. 36.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
37. 37.True or false: water from the oars goes forward. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed

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