TCAP Science Concepts 5

Question 1

During meiosis, the number of chromosomes in the resulting cells is _____ compared to the original cell.

Accepted Answer

Halved

Answer

Doubled

Answer

The same

Answer

Tripled

Question 2

Which of the following correctly describes the relationship between potential and kinetic energy in a swinging pendulum?

Accepted Answer

Kinetic energy is maximum at the bottom, potential energy at the top

Answer

Both remain constant throughout the swing

Answer

Potential energy is maximum at the bottom, kinetic at the top

Answer

Kinetic and potential energy are equal at all points

Question 3

Which of the following gases makes up the largest percentage of Earth's atmosphere?

Accepted Answer

Nitrogen

Answer

Oxygen

Answer

Carbon dioxide

Answer

Argon

Question 4

Which property of water allows it to move upward through a plant's stem against gravity?

Accepted Answer

Cohesion and adhesion (capillary action)

Answer

Its density at 4°C

Answer

Its high boiling point

Answer

Its ability to dissolve salts

Question 5

A scientist repeats an experiment five times and gets very similar results each time. This demonstrates that the experiment has good:

Accepted Answer

Reproducibility (reliability)

Answer

Accuracy only

Answer

A large sample bias

Answer

Theoretical consistency

Question 6

Which of the following describes a chemical property of a substance?

Accepted Answer

Its ability to burn in oxygen

Answer

Its melting point

Answer

Its color

Answer

Its mass

Question 7

The continental drift theory suggests that Earth's continents were once joined in a single landmass called:

Accepted Answer

Pangaea

Answer

Gondwana

Answer

Laurasia

Answer

Rodinia