1.
ISO
Which of the following is a conductor of electricity?
2.
ISO
Which of the following is a renewable resource?
3.
ISO
What is the outermost layer of the Earth called?
4.
ISO
What is the process by which a plant uses sunlight, water, and carbon dioxide to make food?
5.
ISO
Which of the following is a natural source of light?
6.
ISO
What is the process by which a liquid changes into a solid called?
7.
ISO
Which of the following is the main function of the heart?
8.
ISO
Which of the following is an example of a natural magnet?
9.
ISO
What is the process by which plants release oxygen into the air?
10.
ISO
Which of the following is an example of a mammal?