Question 1

1. The smallest unit of an element that has all the basic properties of the element is called a________.

Accepted Answer

Atom

Answer

Nucleus

Answer

Electron

Answer

Isotopes

Question 2

2. What is the proper name for the compound NO?

Accepted Answer

Nitrogen monoxide

Answer

Nitrogenous oxide

Answer

Nitrogen (III) oxide

Answer

Mononitrogen oxide

Question 3

3. About how long ago was Earth formed?

Accepted Answer

4.5 billion years

Answer

45 billion years

Answer

45 million years

Answer

4.5 million years

Question 4

4. What are the three types of rocks?

Accepted Answer

sedimentary, igneous, metamorphic

Answer

silicate, carbonate, oxide

Answer

molten, sedimentary, minerals

Question 5

5. What site regulates what goes in and out of the cell

Accepted Answer

cell membrane

Answer

cell wall

Answer

vacuole

Answer

nucleus

Question 6

6. The smallest unit that has all of the characteristics of life is the:

Accepted Answer

cell

Answer

organism

Answer

organ

Answer

tissue

Question 7

8. Which of the following is a physical quantity that has a magnitude but no direction?

Accepted Answer

Scalar

Answer

Frame of References

Answer

Vector

Answer

Resultant

Question 8

9. Five darts strike at the center of a target. The dart thrower is

Accepted Answer

accurate

Answer

both accurate and precise.

Answer

precise

Answer

neither accurate nor precise.

Question 9

10. Which of the following is a chemical property?

Accepted Answer

burning of woods

Answer

crushing of stones

Answer

cracking an egg

Answer

boiling of water

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