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

Meiosis produces four daughter cells, each with half the chromosome number of the parent cell, creating haploid gametes for sexual reproduction.

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

At the bottom of the swing, the pendulum moves fastest (max kinetic energy), while at the top of each arc it momentarily stops (max potential energy).

Question 3

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

Accepted Answer

Nitrogen

Answer

Nitrogen makes up approximately 78% of Earth's atmosphere, making it the most abundant atmospheric gas.

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

Capillary action occurs because water molecules adhere to the vessel walls and cohere to each other, allowing water to move up narrow xylem tubes.

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

Reproducibility means consistent results can be obtained when an experiment is repeated under the same conditions, a key indicator of reliable data.

(TCAP) Tennessee Comprehensive Assessment Program Practice Test

(TCAP) Tennessee Comprehensive Assessment Program Practice Test

TCAP Science Concepts 5