Show:
Chemistry
Physics
Math
Physical Science
Geography
100
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
What is an Ion?
100

 The property of the metal. The ability of the material to be stretched into a wire is known as ...

What is ductility ?

100

What is the area of a square with length 8cm and with 8cm

64 sq. cm

100
The smallest element that maintains the property of that element.
What is an Atom?
100

What are continents made up of?

Continents are made up of countries.

200
Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Bromine, and Iodine are all considered these types of molecules.
What are Diatomic Molecules?
200

An element is used in making computer chips?

What is a silicon?

200

Part of an algebraic expression which is an unknown letter or symbol.

What is variable.

200
A substance that cannot be broken down into simpler substances.
What is an Element?
200

The seven largest bodies of land are called?

Continents.

300

They were long believed to be totally unreactive.

What are noble/ inert gasses?

300
The spontaneous decomposition of an unstable atomic nucleus into a more stable form, in one of three decays: alpha, beta, gamma.
What is Radioactivity?
300

A formula used to solve quadratic equations.

The quadratic formula.

300
An element or a compound is always considered to be this type of substance.
What is a Pure Substance?
300

Which of the four oceans is the largest?

Pacific

400

This man is credited with the discovery of atomic theory.

Who is John Darton?

400

This is used in light bulbs because it has a high boiling point ______.

What is a tungsten wire?

400

12x12

144

400
During this change of state, atoms or molecules will begin to become more ordered.
What is Sublimation?
400

A piece of land with water all around is called a(n)?

island.

500

These compounds don’t conduct electricity in solid form. 

What are ionic compounds?

500

What will happen when a neutron is absorbed by a nucleus of an atom of Uranium – 235?

What is nuclear fision?

500

182 divided into 6 groups.

27

500

What kind of force is present in ionic bonds? 

What is electrostatic force?

500

A political line that separates two countries or states from one another is called a?

Border.