A cell is the basic unit of life because it is the smallest unit that can carry out all the functions necessary for life, such as metabolism, growth, and reproduction.

An atom is the fundamental unit of matter because it is the smallest unit that retains the chemical properties of an element.

Kinetic energy is the energy of motion. It is associated with the motion of objects and depends on the mass and velocity of the object.

The law of conservation of energy states that energy can neither be created nor destroyed, but it can be transferred from one form to another.

Carbon dioxide is a greenhouse gas because it traps heat in the Earth's atmosphere, contributing to the greenhouse effect.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create glucose, which is a form of energy.

Radio waves have the longest wavelength among the electromagnetic radiation spectrum.

Jupiter is the largest planet in our solar system, both in terms of mass and volume.

The Sun is the closest star to Earth and is the center of our solar system.

Gravitational force is the force that attracts objects towards each other and is responsible for keeping planets in orbit around the Sun.

A covalent bond is a type of chemical bond formed by the sharing of electrons between atoms.

Weathering is the process by which rocks are broken down into smaller pieces by physical and chemical processes.

Solar energy is a type of renewable energy source that is derived from the Sun's radiation.

Transpiration is the process by which plants lose water vapor through their leaves.

An electron is a type of subatomic particle with a negative charge.