Matter, Circuit, and Light

Front

What is matter?

Back

Matter is anything that has mass and takes up space. It can exist in different states, such as solid, liquid, and gas.

Front

What are physical properties of matter?

Back

Physical properties are characteristics that can be observed or measured without changing the substance, such as color, shape, size, and texture.

Front

What is a circuit?

Back

A circuit is a closed path through which electric current flows. It typically includes a power source, wires, and a load (like a light bulb).

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye. It is essential for vision.

Front

What is reflection of light?

Back

Reflection is when light bounces off a surface. For example, you can see your image in a mirror because of reflection.

Front

What is refraction of light?

Back

Refraction is the bending of light as it passes from one material to another, like from air into water.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials. For example, a metal spoon gets hot when placed in a hot soup.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total energy of all the particles in an object.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. For example, gravel and water is a mixture.

Front

What is a solution?

Back

A solution is a special type of mixture where one substance (the solute) is dissolved in another (the solvent), like salt in water.