Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 188 · 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.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
2. 2.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
3. 3.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
4. 4.True or false: yeast is needed for the balloon rocket. (a) False (b) True
5. 5.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
6. 6.True or false: air from the balloon goes forward. (a) True (b) False
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) distance it travels (d) the same straw
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a magnet (d) sticky tape
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) a battery cell
10. 10.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rocket (d) the balloon
11. 11.True or false: water from the oars goes forward. (a) True (b) False
12. 12.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
13. 13.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) a magnet pulls it (d) the straw is heavy
17. 17.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
18. 18.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
22. 22.⚖️ 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
23. 23.⚖️ 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 same string (c) distance it travels
24. 24.True or false: a battery cell 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 straw”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.⚖️ 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) True (b) False
27. 27.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
29. 29.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
30. 30.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
31. 31.True or false: the balloon goes backward. (a) True (b) False
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
33. 33.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) a battery cell (d) vinegar
35. 35.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a long string (d) turmeric powder
36. 36.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a battery cell (d) sticky tape
37. 37.True or false: the balloon goes forward. (a) True (b) False
38. 38.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) vinegar (d) a long string
40. 40.True or false: the rowing boat goes forward. (a) True (b) False

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