Midterm Review: Part 1

Front

What is the independent variable (I.V.) in an experiment?

Back

The independent variable (I.V.) is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What causes the seasons on Earth?

Back

The seasons are caused by the tilt of the Earth's axis as it orbits the Sun.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, such as souring milk.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat through electromagnetic waves, such as grilling hamburgers over a charcoal flame.

Front

What are neap tides?

Back

Neap tides occur when the Earth, Sun, and Moon are at a 90-degree angle to each other, resulting in lower high tides and higher low tides.

Front

What is the dependent variable (D.V.) in an experiment?

Back

The dependent variable (D.V.) is the factor that is measured or observed in an experiment, which is affected by the independent variable.

Front

What is Earth's rotation?

Back

Earth's rotation is the spinning of the Earth on its axis, which takes approximately 24 hours and causes day and night.

Front

What is Earth's revolution?

Back

Earth's revolution is the movement of the Earth around the Sun, which takes about 365.25 days and causes the change of seasons.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer areas rise and cooler areas sink.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.