Final Review

The law of conservation of mass states that mass cannot be

• burned
• changed in form
• created or destroyed
• heated or cooled

Tags

NGSS.MS-PS1-5

The law of conservation of mass states that mass cannot be

• burned
• changed in form
• created or destroyed
• heated or cooled

Unlike a gas, a plasma

• has no mass
• has no definite shape
• has no definite volume
• conducts electric current because it is charged

Tags

NGSS.HS-PS3-5

What type of property can be observed without changing the identity of the substance?

• Physical Property
• Chemical Property
• Conductivity Property 
• Reactivity Property

_________ is anything that takes up space and has mass.

• Inertia
• Matter
• Viscosity
• Malleability 

the smallest unit of matter is called

• at atom
• a molecule
• a compound
• a pure substance

The three main subatomic particles are electrons, protons and ____________.

• photons
• neurons
• neutrons
• quarks

Tags

NGSS.HS-PS1-8

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving