Chemistry Lessons

In class when we put the beaker of water on the hot plate, what happened to the salt in the water?

• It melted

• It dissolved

• It burned

• It got bigger

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A mixture that is homogenous is

• very large

• partially mixed

• evenly mixed

• only theoretically possible

A solvent is

• What we are trying to dissolve

• What a substance gets dissolved into

• always a solid

• a healthy way vent about problems

Check all of the following items that are properties

• Hardness

• Size

• Mass

• Solubility

• Volume

Tags

NGSS.MS-PS1-2

How many valence electrons does Potassium Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

This shows a table salt molecule. What is it?

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

Made up of only 1 type of atom

• Compound

• Molecule

• Element

• Mixture

Tags

NGSS.MS-PS1-1

Which item on this element square is the chemical symbol?

• Copper

• 29

• Cu

• 63.546

An element is

• Made up of different types of atoms

• Made up of the same type of atoms

• none of the above

• all of the above

Tags

NGSS.MS-PS1-1

Which of these samples shown best represents an element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1