Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 991 · 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.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water from the oars
3. 3.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a long string (d) a battery cell
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) yeast (d) a drinking straw
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the slope of the string (d) the same straw
7. 7.⚖️ 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
8. 8.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
9. 9.True or false: gas from the rocket goes forward. (a) True (b) False
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) vinegar (d) sticky tape
12. 12.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
13. 13.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
14. 14.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a battery cell
16. 16.🔮 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
17. 17.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
18. 18.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
19. 19.True or false: the swimmer goes forward. (a) False (b) True
20. 20.🧺 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
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
23. 23.True or false: water a swimmer pushes goes forward. (a) False (b) True
24. 24.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
25. 25.🔮 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
26. 26.True or false: the balloon goes forward. (a) False (b) True
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a balloon (d) sticky tape
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same string (c) the slope of the string (d) how big we blow it
31. 31.🛟 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
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
33. 33.True or false: water from the oars goes backward. (a) True (b) False
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a drinking straw (d) a balloon
35. 35.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
36. 36.True or false: the balloon goes backward. (a) False (b) True
37. 37.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
38. 38.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
39. 39.⚖️ 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
40. 40.🎈 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

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