Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 870 · 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.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a mirror (d) a balloon
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.⚖️ 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
4. 4.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
6. 6.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) air from the balloon (d) the swimmer
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same straw
8. 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) sticky tape (d) turmeric powder
11. 11.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
12. 12.True or false: yeast is needed for the balloon rocket. (a) True (b) False
13. 13.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
14. 14.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
15. 15.True or false: the swimmer goes backward. (a) False (b) True
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) yeast (d) a long string
17. 17.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) water from the oars
18. 18.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a magnet (d) two chairs
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ 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 same tape
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
24. 24.True or false: the swimmer goes forward. (a) True (b) False
25. 25.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
27. 27.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
29. 29.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the rocket
34. 34.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
35. 35.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) a drinking straw (d) sticky tape
37. 37.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) sticky tape (d) yeast
39. 39.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed

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