8th grade Science Test

The Atoms In The Blue Are Called What?

• Nonmetal
• Metals
• Metalloid
• Compounds

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

• Atoms
• Molecules
• Elements
• Compounds

Electrons are

• negative and in the nucleus
• positive and at the edge of the atom
• not in an atom
• negative and at the edge of the atom

The central region of an atom where its neutrons and protons are is called the

• nucleus 
• electron cloud
• core 
• center 

What are the states of matter?

• solid, liquid, and juice
• solid and liquid
• solid and gas
• solid, liquid, and gas

In a solid, the particles

• Vibrate in place
• Slide past one another
• Overcome the strong attraction
• Stay in place

What type of change is a burning candle?

• Physical
• Chemical Properties
• Chemical
• Physical Properties

Each of these objects is an example of what?
House
Desk
Pencil
Car

• metal
• wood
• plastic
• matter

Properties that can be observed without trying to change the identity of the substance.

• Physical
• Chemical

What is a compound?

• An atom with more electrons than protons
• A substance in which the atoms of two or more elements are combined together
• An atom with more neutrons than protons
• A substance in which the atoms of three or more elements are combined together