Science Investigation Quiz

Why might a cup with a lid keep liquids hot or cold better than a cup without a lid?

• The lid allows for more air circulation.

• The lid makes the cup heavier, which traps more heat.

• The lid changes the temperature of the air inside the cup.

• The lid reduces heat exchange between the liquid and the air.

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If you want to test the effect of adding hot water to different cups to see which one keeps water hot the longest, what is the independent variable?

• The time of recording

• The type of the cup

• The amount of water

• The starting temperature of the water

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Why do we need to agree on a list of procedures before conducting an investigation?

• To make sure all steps are followed consistently by everyone

• So that each person can do the experiment differently

• To make the experiment shorter

• So that no instructions are the same

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What pattern might you look for in temperature data when comparing tests with hot and cold water?

• Differences in how quickly the temperature changes

• Changes in the color of the water

• Differences in the taste of the water

• Changes in the volume of the water

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When conducting a fair test with hot water in different cups, what should you ensure remains constant?

• The time taken to pour the water

• The color of the cups

• The amount of water in each cup

• The shape of the cups

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Why does adding a lid help decrease the amount of water leaving the system?

• A lid traps all the air inside the system.

• A lid makes the system heavier.

• The lid changes the chemical composition of the water

• A lid prevents the water from escaping as vapor

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If we could completely seal off the cup, do you think the temperature of the liquid inside would still change? Why?

• No, because it would stay at the initial temperature forever.

• No, because nothing can change in a sealed environment.

• Yes, heat energy can still transfer to or from the cup’s surroundings.

• Yes, because the water molecules would stop moving.

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How does weighing each system at the start and end of the experiment provide insights into what happens to the water?

• It helps determine if any mass is lost, indicating evaporation or condensation.

• It ensures that the water was initially pure.

• It confirms the temperature changes measured.

• It verifies that the experiment was conducted properly.

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What would happen to the temperature of hot water in a cup without a lid compared to a cup with a lid?

• The cup without a lid would maintain its temperature.

• The cup without a lid would cool down faster.

• Both cups would cool down at the same rate.

• The cup with a lid would cool down faster.

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What is happening to the liquid water that can explain why the mass of the cup system decreases over time?

• The water turns into gas and increases the mass of the system.

• The water molecules evaporate, leaving the system and reducing mass.

• The water molecules bond with air particles, doubling the mass.

• The water solidifies and makes the cup heavier.

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