Classification of Matter- Check In

An atom has 25 protons and 30 neutrons. How many electrons are needed to make the atom neutral?

• 0

• 25

• 30

• 35

Tags

NGSS.MS-PS1-1

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Tags

NGSS.MS-PS1-1

A substance made up of atoms of two or more different elements joined by chemical bonds.

• Element

• Compound

• Molecule

• Mixture

Tags

NGSS.MS-PS1-1

Waleed and zain are sorting different substances in their chemistry lab. They need to classify each substance as an element, compound, or mixture. How should they classify water?

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

Anabia and Sarina are studying different substances in their chemistry class. They learned that some substances contain only one kind of atom.  Which of the following substances are they referring to?

• element 

• compound 

• mixture 

• water 

Hala and Hibah are looking at a picture of a substance in their chemistry class. This picture represents which of the following?

• element

• compound

• mixture of elements

• mixture of compounds

Tags

NGSS.MS-PS1-1

Suhila and Kayanat are mixing different substances in their science class. They notice that one mixture appears to be evenly mixed throughout. What type of mixture is this?

• an atom

• a compound

• a homogeneous mixture

• a heterogeneous mixture

Ayah is making a fruit salad. What is the best way to describe the salad?

• element

• compound

• Homogeneous mixture

• Heterogeneous mixture

In this diagram, Y represents...

• An element

• A molecule

• A compound

• A mixture

Tags

NGSS.MS-PS1-1

Label this atom's particles.

a

b

c

d

Electrons

Protons

Nucleus

Neutrons

Tags

NGSS.MS-PS1-1