1.
[ISO]
What is the process by which a liquid changes into a solid called?
2.
[ISO]
Which of the following is the hardest substance found in nature?
3.
[ISO]
Which of the following is the main function of the nervous system in the human body?
4.
[ISO]
What is the process by which light waves bounce off a surface called?
5.
[ISO]
What is the process by which an organism changes its physical or behavioral traits to survive in its environment called?
6.
[ISO]
Which of the following is the primary function of the circulatory system in the human body?
7.
[ISO]
What is the process by which a gas changes into a liquid called?
8.
[ISO]
What is the process by which plants and animals release waste materials from their bodies called?
9.
[ISO]
Which of the following is the process by which a seed begins to grow into a new plant?
10.
[ISO]
Which of the following is the layer of the Earth's atmosphere closest to the surface?