Science Flashcard All Standards

Front

What is the solar system?

Back

The solar system consists of the Sun and all the celestial bodies that are bound to it by gravity, including eight planets, their moons, and other objects like asteroids and comets.

Front

What are the eight planets in the solar system?

Back

The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with new properties, such as when eggs are cooked.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition, such as melting ice.

Front

What is density?

Back

Density is the mass of an object divided by its volume, determining whether it will float or sink in a fluid.

Front

What happens to chocolate when it is melted and then cooled?

Back

When chocolate is melted, it changes from solid to liquid. When cooled, it solidifies again, but can be melted again if heated.

Front

What is the difference between a solid, liquid, and gas?

Back

Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases have neither fixed shape nor volume.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, determined by the object's density compared to the fluid's density.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What is an example of a chemical change?

Back

An example of a chemical change is cooking an egg, where the raw egg transforms into a solid.