Science Topics Flashcards

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth.

Front

What is the carbon cycle?

Back

The carbon cycle is the process through which carbon is exchanged between the Earth's oceans, soil, rocks, and atmosphere.

Front

Define kinetic energy.

Back

Kinetic energy is the energy that an object possesses due to its motion.

Front

Define potential energy.

Back

Potential energy is the energy held by an object because of its position relative to other objects.

Front

What is internal energy?

Back

Internal energy is the total energy contained within a system, including both kinetic and potential energy of particles.

Front

What is external energy?

Back

External energy refers to energy that is transferred to or from a system from its surroundings.

Front

What is the composition of air?

Back

Air is primarily composed of:

Nitrogen (N₂) - 78%

Oxygen (O₂) - 21%

Carbon Dioxide (CO₂) - 0.03%

Water (H2O) - 0.02%

small amounts of other gases

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the chemical equation for photosynthesis?

Back

The chemical equation for photosynthesis is:

6CO₂ + 6H₂O + sunlight -> C₆H₁₂O₆ + 6O₂.