Front

What is the independent variable in Ingrid's hypothesis about temperature and density?

Back

The independent variable is the temperature.

Front

What is the dependent variable in Ingrid's hypothesis about temperature and density?

Back

The dependent variable is the density.

Front

What is the correct measurement for instrument B if it reads -1.5 °C?

Back

-1.5 °C

Front

How do you calculate the volume of an object using water displacement?

Back

The volume of the object is equal to the initial volume of water minus the final volume of water after the object is submerged.

Front

If the volume of water and an egg is 200 mL and the volume of water after removing the egg is 125 mL, what is the volume of the egg?

Back

75 cm³

Front

Why do scientists perform many trials for each experiment?

Back

They want to improve the reliability of the results.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What is the significance of a hypothesis in scientific experiments?

Back

A hypothesis is a testable prediction about the relationship between variables.

Front

What is the purpose of a control group in an experiment?

Back

A control group is used as a standard for comparison to determine the effect of the independent variable.