Hypotheses, Laws, and Theories

Question 1

Choose whether each statement is a scientific hypothesis, theory, or law. The pressure a gas exerts on a container increases as the temperature increases because the particles in the warmer gas move faster and collide with the walls of the container with more force.

Revolt · Accepted Answer

theory

Question 2

As the temperature of a gas increases, the pressure it exerts on its container also increases.

Revolt · Accepted Answer

law

Question 3

If this container of gas is heated, then the pressure inside the container will increase because pressure increases as temperature increases.

Revolt · Accepted Answer

hypothesis

Question 4

Suppose you boil water and use it to cook pasta. What do you think happens to the total mass of the pasta and the water as the pasta cooks?

Revolt · Accepted Answer

It increases.; It decreases.; It remains the same.

Question 5

How could you test your hypothesis?

Revolt · Accepted Answer

Find the total mass of the water and the dry pasta, then cook the pasta and measure the mass of the cooked pasta and the water in which it is being cooked.

Question 6

Why is reproducibility so important to scientists?

Revolt · Accepted Answer

Reproducible experiments help scientists test if the results are correct.; Reproducible experiments help build confidence in the theory.

Question 7

Which of the following would be appropriate reason(s) for scientists to reject atomic theory?

Revolt · Accepted Answer

evidence that some kinds of matter are made up of waves instead of particles; observations that cannot be explained by the theory

Hypotheses, Laws, and Theories Answers

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