be free from dirt, marks, or unwanted substances, often achieved by washing or removing impurities.

materials or substances that are no longer needed or useful and are disposed of because they're seen as unusable or unwanted

all about everything around us, like nature, air, water, and where living things exist.

a gas that we breathe out and is also released when we burn things like gasoline or wood. It's in the air around us and can make the Earth warmer.

is a big, round thing that moves around a star, like how Earth moves around the Sun. Planets don't make their own light, but they shine because they reflect light from stars. Earth is one of these planets.

a large area covered chiefly with trees and underbrush, forming a natural ecosystem.

make something, like air, water, or soil, dirty, harmful, or less pure by adding harmful substances or waste materials.

the process of cutting down, clearing, or removing trees from a forested area, often resulting in the transformation of forest land into non-forest areas like agricultural fields, urban spaces, or barren land.

a container specifically designed to hold waste materials and garbage until it can be collected for disposal.

waste materials or items that are no longer wanted or needed. It includes various discarded materials such as food scraps, packaging, paper, plastics, and other items that are thrown away.

Garbage is unwanted or discarded waste material, often including things like food scraps, packaging, and other items thrown away as no longer useful.

the ability to do work or produce heat, light, or power. It comes in various forms like electricity, heat, or motion and is essential for making things happen or causing change