Balloon Rocket STEM Worksheet

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

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