Front

Which property provides the best evidence that both samples are solids rather than liquids? Options: mass, Color, Shape, Volume

Back

Shape

Front

Which of the following must be true for scientific results to be valid? The results should be drawn in a graph. The results should be based on evidence. The results should support the ideas of other scientists. The results should match the predictions of the scientist.

Back

The results should be based on evidence.

Front

Jerome put water in the freezer and made ice. Which of the following happened? A. B. C. D.

Back

Water physically changed from a liquid to a solid.

Front

What state of matter is a substance that can take the shape of its container, as demonstrated when it was round in a one-liter container and rectangular in a larger container?

Back

liquid

Front

Which of the following describes an example of a material undergoing a chemical change to become another material with different characteristics?
Options:
Iron turns to rust when it is exposed to oxygen.
When water boils, it turns into vapor, which is a gas.
Oxygen can become liquid at a very low temperature.
Gold can be spread out very thin to cover a large area.

Back

Iron turns to rust when it is exposed to oxygen.

Front

Why did LaMont place the banana in the freezer before leaving his house?

Back

Chemical changes generally happen slower at lower temperatures.

Front

Maria stirred salt in water causing the salt to dissolve. She placed the cup of the salt water on a windowsill. She observed the cup for two days. Which of the following would correctly indicate the change that occurred?

Back

A physical change because the water evaporated leaving the salt behind.

Front

Which variable is Becky changing in the experiment?

Back

the type of yogurt

Front

Mass and volume are two properties that can be used to describe matter. Which of the following statements describes what you observe about the mass and volume of the two objects on the balance below? Both objects have the same mass, but Object B has more volume. Both objects have the same volume, but Object B has more mass. Both objects have the same mass, but Object A has more volume. Both objects have the same volume, but Object A has more mass.

Back

Both objects have the same volume, but Object A has more mass.

Front

Which of the following will result in a substance with new chemical property?
cutting wood,
shredding a newspaper,
roasting marshmallows,
boiling water evaporating

Back

roasting marshmallows