2025 ESH CFE Review 2

If you add salt to water (increase its salinity), the water becomes ____________.

• more dense

• less dense

Which is more impressive evidence?

• a hypothesis which is proven to be correct

• a hypothesis which is supported by evidence

Tags

NGSS.HS-LS3-2

As the salinity of seawater increases, its density _____________. (Remember, saltier water sinks.)

• increases

• decreases

Tags

NGSS.HS-ESS2-5

If you add freshwater rain to seawater (decreasing its salinity), the water becomes ____________.

• less dense

• more dense

Redshift happens because light waves get _____________ as they move ____________ you.

• longer, closer to

• longer, away from you

• shorter, away from

• shorter, closer to

Tags

NGSS.HS-PS4-1

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

Which has the least energy?

• gamma rays

• radio waves

• visible light

• infrared waves

Tags

NGSS.HS-PS4-4

A hypothesis is considered to be correct when sufficient evidence is collected to prove it to be true.

• true

• false

Tags

NGSS.HS-PS1-2

Which has the most energy?

• radio waves

• ultraviolet waves

• gamma waves

• visible light

Tags

NGSS.HS-PS4-4

If the barometer (atmospheric pressure) is rising, __________ weather is coming.

• clearer

• stormier

Tags

NGSS.MS-ESS2-5

Which has the lower frequency?

• x- rays

• infrared waves

• gamma rays

• ultraviolet waves

Tags

NGSS.HS-PS4-1