Physical Science 1st Semester Test

Front

What does malleable mean in terms of metals?

Back

Malleable means a metal can be rolled or pounded into flat sheets.

Front

What is an organized plan for gathering, organizing, and communicating information called?

Back

It is called the Scientific method.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that is not uniform in composition, such as a jar of mixed nuts.

Front

Where is almost all the mass of an atom located?

Back

Almost all the mass of an atom is located in its nucleus.

Front

What happens to the volume of a balloon when it is cooled?

Back

The volume will decrease.

Front

Define the term 'atom'.

Back

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

Front

What is the difference between a hypothesis and a theory?

Back

A hypothesis is a testable prediction, while a theory is a well-substantiated explanation of an aspect of the natural world.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, such as sugar water.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.