7th Grade Integrated Science Study Guide

These flashcards cover key concepts related to the change of state of matter, the magnetosphere, and the Earth's spheres.

What happens to the molecules of water when energy is added?

The molecules move faster, increasing its temperature.

What happens to the kinetic energy of particles when heat energy is added?

Their kinetic energy increases.

In which state of matter do particles have the most kinetic energy?

Gas.

What happens when heat energy is added to ice?

Ice becomes water.

When water becomes water vapor, is energy added or removed from the system?

Energy is added.

When an egg is fried in a pan, which direction is heat traveling?

From the pan to the egg.

What is conduction of heat?

The transfer of heat through a material by direct contact.

What is convection of heat?

The transfer of thermal energy through the movement of fluids.

What is radiation of heat?

The transfer of thermal energy as electromagnetic waves emitted by any object with a temperature above absolute zero.

Where does the energy for the water cycle come from?

The sun.

How does the Earth act as a giant magnet?

Due to the movement of molten iron in its outer core, which generates electric currents and creates a magnetic field.

Why is the magnetic field of the Earth important for survival of life?

It deflects harmful solar wind and cosmic radiation away from the Earth.

Name two factors that help protect the Earth from radiation.

Magnetic Field and Atmosphere.

What are the four spheres of the Earth?

Lithosphere, Hydrosphere, Biosphere, Atmosphere.