8th grade science review

What is a example of lab safety?

• Keep your hair down

• Eat a snack before an experiment

• Keep your goggles on at all times

• Play around the equipment

What is Natural Selection?

• The process were only plants better adapted to their environment tend to survive and produce more offspring.

• The process were only humans better adapted to their environment tend to survive and produce more offspring.

• The process were individuals better adapted to their environment tend to survive and produce more offspring.

• The process were organisms better adapted to their environment tend to survive and produce more offspring.

Tags

NGSS.MS-LS4-4

A scientific theory...

• is based on lots of evidence
• is not valid
• is not reliable
• has not been tested many times

Tags

NGSS.HS-LS4-1

NGSS.HS-PS4-4

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

Tags

NGSS.HS-PS2-1

The independent variable is the ONE thing you _____.

• change
• keep the same
• experiment with
• investigate

Tags

CCSS.6.EE.C.9

Walker is testing which fertilizer will grow the tallest grass.  The height of the grown grass is the __ variable.

• constant (same)
• independent (changes)
• dependent (measured)

A _____________________ is something that scientists use to represent an object or process

• mass
• matter
• model
• weight

Tags

NGSS.MS-ETS1-4

NGSS.MS-LS2-3

What is the definition of CONVECTION

• When heat transfers through waves.
• When heat transfers from objects that are touching.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• Heat traveling from the sun

Tags

NGSS.4-PS3-2

Which of the following is an example of convection?

• A hair dryer is drying up your hair.
• When the AC or heater changes the temperature.
• When a car engine turns hot after being turned on.
• When you are making soup and the water is rising and lowering.

Tags

NGSS.HS-ESS2-3

The chart that arranges elements by atomic number is:

• Atomic Number
• Metal
• Periodic Table
• Chart