7th Grade Science

Front

Where are electrons located?

Back

Electrons are located in the outer shell of an atom and have a negative charge (-).

Front

What is a reactant?

Back

A reactant is an element or compound that is present at the beginning of a chemical reaction, before the arrow in a chemical equation.

Front

Examples of renewable resources?

Back

Renewable resources include plants, animals, solar energy, water, biomass, and wind.

Front

What is oxidation?

Back

Oxidation is the process of adding oxygen to a substance, such as a metal, which can lead to rust.

Front

What is a renewable resource?

Back

A renewable resource is a resource that can be replenished or regrown in a short amount of time.

Front

What is the charge of an electron?

Back

The charge of an electron is negative (-).

Front

What is the role of sunlight in photosynthesis?

Back

Sunlight provides the energy needed for plants to convert carbon dioxide and water into glucose and oxygen.

Front

What is biomass?

Back

Biomass is organic material that comes from plants and animals, and it can be used as a renewable energy source.

Front

What is the difference between renewable and non-renewable resources?

Back

Renewable resources can be replenished naturally in a short time, while non-renewable resources take millions of years to form and cannot be replaced quickly.

Front

What is the chemical equation for photosynthesis?

Back

The chemical equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.