Physical Science Mid Year Review 8th Grade

positive charge, found in nucleus, mass = one

• proton
• neutron
• electron
• ion

Tags

NGSS.HS-PS1-8

no charge, found in nucleus, mass = one

• proton
• neutron
• electron
• ion

negative charge, found orbiting nucleus, mass is almost zero

• proton
• neutron
• electron
• ion

Tags

NGSS.MS-PS1-1

the ability to be hammered into sheets

• conductivitiy
• ductility 
• malleability

Smallest component of an element

• atom
• molecule

Tags

NGSS.MS-PS1-1

A scientist spilled a few drops of dilute hydrochloric acid on a lab table.  For safety purposes, the scientist sprinkled some baking soda onto the spill.  Which observation would provide the best evidence that a chemical reaction occurred?

• The baking soda and hydrochloric acid combined, and bubbles formed.
• The baking soda absorbed the hydrochloric acid.
• Some of the baking soda dissolved in the hydrochloric acid.
• The hydrochloric acid evaporated, leaving only the baking soda.

Tags

NGSS.MS-PS1-2

How many atoms of oxygen are in a molecule of glucose (C₆H₁₂O₆)?

• 12
• 6
• 18
• 24

Tags

NGSS.MS-PS1-1

Which is an example of a physical property?

• ability to react with acid
•  state of matter
• flammability
• ability to react with oxygen

Which of the following is a physical property?

• melting point
• flammability
• ability to rust

Gold, which is in Group 11 on the periodic table, is an example of a(n) ____________

• Alkali Metal 
• Other Metal 
• Transition Metal
• Alkaline Earth Metal