Elements, Compounds, Mixtures - 8th Grade

Substances that cannot be broken down chemically into other substances are

• elements

• compounds

• mixtures

• solutions

All elements are composed of extremely small particles called

• compounds

• mixtures

• atoms

• molecules

Soil, salad, and sugar water are all examples of

• elements

• compounds

• mixtures

• atoms

A __________________is formed when two more substances are so evenly mixed that you can't see the different parts.

• heterogeneous mixture

• compound

• homogeneous mixture

• fruit salad

A(n) _____________ is a substance formed from two or more elements that are chemically combined in a set ratio.

• compound

• mixture

• solution

• atom

In a(n) ______________ mixture, like a salad, you can see the different parts.

• homogeneous

• heterogeneous

• solution

• atom

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

The three main regions on the periodic table are ____________.

• solid, liquid, gas
• metals, nonmetals, meatlloids
• radioactive, man-made, poisonous

This picture represents which of the following?

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1