NAEP Science 5

Question 1

Which type of electromagnetic radiation has the highest frequency and the most energy per photon?

Accepted Answer

Gamma rays

Answer

Gamma rays have the shortest wavelength and highest frequency on the electromagnetic spectrum, giving them the greatest energy per photon.

Question 2

A food web shows that grasses are eaten by mice, mice are eaten by snakes, and snakes are eaten by hawks. If a disease eliminates most of the snake population, what would most likely happen next?

Accepted Answer

The mouse population would increase and grass would decrease

Answer

With fewer predators (snakes), the mouse population would grow unchecked, leading to overconsumption of grasses and a decline in grass abundance.

Question 3

Which property of water allows it to travel from plant roots to leaves against gravity through a stem?

Accepted Answer

Cohesion and adhesion combined with transpiration pull

Answer

Water molecules cling together (cohesion) and to xylem walls (adhesion), and evaporation from leaves (transpiration) creates negative pressure that pulls the water column upward.

Question 4

A star much more massive than the Sun will most likely end its life as a:

Accepted Answer

Neutron star or black hole

Answer

Very massive stars exhaust their fuel rapidly, collapse violently in a supernova, and leave behind either a neutron star or, for the most massive, a black hole.

Question 5

According to the law of conservation of energy, which statement is TRUE?

Accepted Answer

The total energy in a closed system remains constant

Answer

The law of conservation of energy states that energy cannot be created or destroyed; it only changes form, keeping the total energy of an isolated system constant.

NAEP - National Assessment of Educational Progress Practice Test

NAEP - National Assessment of Educational Progress Practice Test

NAEP Science 5