8th Grade Science Review-Week 9

Front

What does the law of conservation of matter state?

Back

In a chemical reaction, the total mass of the reactants is equal to the total mass of the products.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

How does amplitude relate to energy in waves?

Back

The greater the amplitude of a wave, the more energy it carries.

Front

What is the relationship between mass and force in acceleration?

Back

The greater the mass of an object, the greater the force needed to accelerate it.

Front

In the reaction Ca + Cl2 --> ?, how many chlorine (Cl) atoms are needed in the product?

Back

2 chlorine (Cl) atoms are needed in the product.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform throughout.

Front

What is frequency in relation to waves?

Back

Frequency is the number of waves that pass a point in a given period of time.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave.