What I've Learned In 7th Grade Science So Far....2024

Front

What is mass?

Back

A measure of the amount of matter an object contains.

Front

Which elements are shiny/metallic, good conductors of heat and electricity, and malleable and ductile?

Back

Metals.

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to undergo a specific chemical change, such as the ability to burn.

Front

What is an example of a mixture?

Back

Water and oil, Cereal and Milk, Sand and water - All of the above.

Front

What is a compound?

Back

A substance produced when elements combine and whose properties are different from each of the elements in it.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically bond.

Front

What is density?

Back

The mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.