Chemistry Common Assessment Grade 8 (PS1-1, 1-2, 1-4, 1-5)

Which subatomic particle determines the element?

• protons

• neutrons

• electrons

Which statement best describes an electron?

• Smaller mass than a proton and a negative charge
• Smaller mass than a proton and a positive charge
• Greater mass than a proton and a negative charge
• Greater mass than a proton and a positive charge

Tags

NGSS.MS-PS2-3

What particle is Y?

• Proton

• Neutron

• Nucleus

• Electron

What particle is X?

• Proton

• Neutron

• Nucleus

• Electron

What is the basic unit of matter? (Hint: What is all matter made up of?) Cells Light Atoms Nucleus

• Cells

• Light

• Atoms

• Nucleus

Which of the following is NOT part of an atom?

• Electron

• Element

• Proton

• Neutron

Are made from a combination of 2 or more elements in fixed proportions...

• Molecules

• Pure Substances

• Compounds

• Elements

A combination that can be separated by physical processes is a .....

• Pure Substance
• Glucose
• Element
• Mixture

A mixture that is NOT evenly distributed is called ....

• Compounded
• Homogenous
• Heterogenous
• Salty

Mixture, such as mixed nuts or dry soup mix, in which different materials are unevenly distributed and are easily identified.

• suspension
• homogeneous mixture
• heterogeneous mixture
• colloid