CSU Natural Sciences 3

Question 1

Which scientist is credited with proposing the theory of evolution by natural selection?

Accepted Answer

Charles Darwin

Answer

Gregor Mendel

Answer

Louis Pasteur

Answer

Albert Einstein

Question 2

What is the subatomic particle that carries a negative electrical charge?

Accepted Answer

Electron

Answer

Proton

Answer

Neutron

Answer

Photon

Question 3

Which process involves water molecules moving from a region of higher water concentration to lower water concentration through a semi-permeable membrane?

Accepted Answer

Osmosis

Answer

Active transport

Answer

Diffusion

Answer

Endocytosis

Question 4

Approximately how long is the half-life of Carbon-14, commonly used in radiocarbon dating?

Accepted Answer

5,730 years

Answer

1,000 years

Answer

12,000 years

Answer

100,000 years

Question 5

What type of wave requires a physical medium such as air, water, or a solid to travel through?

Accepted Answer

Mechanical wave

Answer

Electromagnetic wave

Answer

Radio wave

Answer

Light wave

Question 6

What is the chemical symbol for the element gold on the periodic table?

Accepted Answer

Au

Answer

Go

Answer

Gd

Answer

Gl

Question 7

What does the law of conservation of energy state?

Accepted Answer

Energy cannot be created or destroyed, only transformed

Answer

Energy can be created but not destroyed

Answer

Energy can be destroyed but not created

Answer

Energy always increases in a closed system