State Science Test Review

Front

What causes a drinking straw to appear bent when placed in a glass of water?

Back

Light waves from the straw are refracted when moving from water to air.

Front

What is the definition of homeostasis?

Back

Homeostasis is the maintenance of a stable environment inside the body.

Front

How do cells obtain energy from food?

Back

Chemical reactions convert the food into a form that the cell can use for energy.

Front

When comparing samples of seawater, what data should be the same if one sample has twice the volume of the other?

Back

The boiling point of the seawater.

Front

What happens to the mass of a solution after sugar is dissolved in water?

Back

It is equal to the combined masses of the spoonful of sugar and 500 ml of water.

Front

What is refraction?

Back

Refraction is the bending of light waves as they pass from one medium to another.

Front

What is the role of chemical reactions in cells?

Back

Chemical reactions convert nutrients into energy that cells can use.

Front

What is the significance of homeostasis in living organisms?

Back

Homeostasis is crucial for maintaining optimal conditions for cellular processes.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance, while chemical properties describe how a substance reacts.

Front

What is the mass conservation principle?

Back

The mass conservation principle states that mass is neither created nor destroyed in a chemical reaction.