Everything is made of _______ .

Tags

NGSS.MS-PS1-5

Water is two parts ___ and one part ___ .

• hydrogen (H) and oxygen (O)

• nitrogen (N) and oxygen (O)

• sodium (Na) and chloride (Cl)

• carbon (C) and oxygen (O)

Tags

NGSS.MS-PS1-1

What element makes iron rust and our blood red?

• oxygen

• nitrogen

• carbon

• helium

These two chemicals, when they are separate, are dangerous. When these two chemicals are combined, they make a new substance that is safe to eat! What are they?

• Sodium (Na) and chlorine (Cl)

• Carbon (C) and oxygen (O)

• Hydrogen (H) and chlorine (Cl)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How many total elements are there on the periodic table?

• 100

• 92

• 10

• 37

Photosensitive paper does NOT chemically react to which color of light?

• White

• Blue

• Black

• Red

Tags

NGSS.MS-PS1-2

NGSS.MS-PS4-2

The Swedish chemist Alfred Nobel is famous for this chemical reacting invention.

• Dynamite

• Salt

• Milk

• Fire extinguishers

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following is an example of a chemical reaction?

• Baking a cake

• Cutting a piece of paper

• Ice melting

• Chopping wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a chemical reaction?

• a process in which one or more substances are converted to one or more different substances

• a process that changes the shape, color, or texture of a substance, but no new substance is created

• the state of matter a substance is: solid, liquid, or gas

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Chemicals can _________ with each other to make new chemicals.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5