5th Grade Topic 1 Quick Check

Front

What is an atom?

Back

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

Front

How do scientists know that atoms exist?

Back

Many scientists have gathered evidence to show that atoms exist.

Front

What happens when sugar is broken into smaller pieces?

Back

It dissolves more quickly in water.

Front

What is a property of gases?

Back

Gases spread through the air.

Front

What tool is used to measure very small objects like atoms?

Back

An electron microscope.

Front

What is filtration?

Back

Filtration is a method used to separate solids from liquids by passing the mixture through a filter.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

What is the periodic table?

Back

The periodic table is a chart that organizes all known elements by their atomic number and properties.

Front

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

Back

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

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into vapor.