Question 1

What is one element that makes up a large part of all living matter?

Accepted Answer

carbon

Answer

copper

Answer

silicon

Answer

helium

Question 2

The solid Earth, oceans, atmosphere,and living matter are all made of which of the following?

Accepted Answer

A limited number of the 103 elements shown above in the Periodic Table

Answer

Only those shaded elements in the bottom three row of the Periodic Table

Answer

An equal combination of all 103 elements shown above in the Periodic Table

Answer

Only elements located within the bottom two rows of the Periodic Table

Question 3

What do you think makes an element different from any other matter?

Accepted Answer

An element is a pure substance which cannot be broken own into other elements.

Answer

An element is a combination of different forms of matter.

Answer

An element can only be a solid.

Answer

An element can be broken down into other elements.

Question 4

Which of the following is an example of an element?

Accepted Answer

oxygen

Answer

sodium chloride

Answer

gasoline

Answer

water

Question 5

Anything that has mass and takes up space.

Accepted Answer

matter

Answer

volume

Answer

chemical change

Answer

energy

Question 6

Which of the following is an example of an element name?

Accepted Answer

Oxygen

Answer

Fe

Answer

C

Answer

He

Question 7

The rocks forming Earth's crust are made mostly of :

Accepted Answer

The elements oxygen and silicon

Answer

The earth metals and alkaline earth metals

Answer

An even mixture of all the elements

Answer

All the elements classified as metals

Question 8

Ocean water contains all these elements EXCEPT which one?

Accepted Answer

Iridium

Answer

Hydrogen

Answer

Oxygen

Answer

Sodium

Question 9

About how many known elements are there?

Accepted Answer

A little over a hundred

Answer

Twenty-five

Answer

Four

Answer

Fifty

Question 10

Which diagram shows an example of a pure substance?

Accepted Answer

C

Answer

A

Answer

B

Question 11

In the figure above the arrow is pointing to two circles that are connected. The circles are identical. What does the picture represent?

Accepted Answer

an element

Answer

a compound

Question 12

Humans, like you, are mostly made of which element?

Accepted Answer

oxygen

Answer

helium

Answer

water

Answer

nitrogen

Question 13

The four most common elements on Earth and its surroundings are:

Accepted Answer

carbon, hydrogen, oxygen,nitrogen

Answer

carbon, helium, calcium,chlorine

Answer

sulfur, sliver, oxygen, carbon

Answer

nitrogen, sodium, oxygen, phosphourus

Question 14

What is the most abundant element found in Earth's atmosphere?

Accepted Answer

Nitrogen

Answer

Carbon

Answer

Oxygen

Answer

Helium

Question 15

Why are only a limited number of elements found on the periodic table?

Accepted Answer

Because they make a large part of each system

Answer

Because they are so important

Answer

Because they are the easiest elements to remember

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