Instructional Text Comprehension

1. 1. List the materials that are required to make the mini bottle rocket.

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Answer explanation

Small 500ml bottle, cork, kitchen roll, baking soda, vinegar or lemon juice, 3 straws, tape.

2. 2. What should be poured into the bottle before launching the rocket?

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Answer explanation

About 3cm of vinegar should be poured into the bottle before launching the rocket.

3. 3. How should the three straws be attached to the bottle according to the instructions?

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Answer explanation

The three straws should be attached to the side of the bottle using tape so that it stands up upside down.

4. 4. Why is it important for the cork to fit tightly inside the bottle neck?

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Answer explanation

The cork needs to fit tightly inside the bottle neck to create a seal and contain the pressure build-up during the launch.

5. 5. What might happen if the launch area is not outside or is not a hard surface?

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Answer explanation

If the launch area is not outside or is not a hard surface, it might damage the property or injure the observers due to the rapid ascent of the rocket.

6. 6. Do you think vinegar or lemon juice would be more effective for this experiment? Why?

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Answer explanation

Both vinegar or lemon juice may work depending on the acidity and reaction rate. Experimentation may be needed to determine the best option.

7. 7. What safety measures would you suggest to ensure the observers' safety during the rocket launch?

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Answer explanation

Suggested answer: Wear protective gear. Observers should not stand close to experiment.

8. 8. Why do you think learning how to make and launch a mini bottle rocket is an exciting activity?

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Answer explanation

Learning how to make and launch a mini bottle rocket is exciting because it allows for hands-on experimentation with scientific principles and the experience of seeing the results

9. 9. How do the principles demonstrated in this experiment relate to real-world applications in space exploration?

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Answer explanation

Engineers use similar principles to build big rockets that take people and satellites into space.

10. 10. What is another name for bicarbonate of soda?

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Answer explanation

baking soda