Defined as anything that has mass and takes up space.
What is matter?
100
A carbonated drink.
What is an example of a gas-liquid mixture?
100
Neutrons and Protons with an overall positive charge.
What is inside of an atoms nucleus?
100
Mendeleev based his arrangement of the elements on an this.
What is atomic mass.
200
A series of steps followed to solve problems including: making observations, forming questions, formulating a hypothesis, testing the hypothesis, collecting data, analyzing data and forming a conclusion.
What is the Scientific Method?
200
A substance that cannot be separated into into simpler substances by chemical means.
What is an element?
200
Process of a liquid becoming a gas.
What is evaporation?
200
This is equal to the number of protons in an atoms nucleus.
What is the atomic number?
200
The modern periodic table is based on this.
What is an element's atomic number.
300
The standard units of measurements that scientists use around the world.
What is International System of Units or SI
300
A substance made up of at leaset two different types of atoms.
What is a compound?
300
The principle used to find buoyant force.
What is Archimedes Principle?
300
Electrons are never found here.
Where is ..in between energy levels.
300
Elements in the same group have the same number of these.
What is valence electrons.
400
The variable that lies on the X axis...
What is the independent variable?
400
Melting point, boiling point, melting point, freezing point, texture, color, mass, density, volume and conductivity.
What are examples of physical properties?
400
D=M/V
What is the formula to calculate density?
400
Greek philosopher who suggested that the universe was made of indivisible units. He called them atoms.
Who was Democritus?
400
The simplest organic compound.
What is methane
500
Scientists conduct an experiment.
What is the way scientists test a hypothesis?
500
Reactivity and flammability.
What are chemical properties?
500
The process of liquid becoming solid.
What is freezing?
500
When an atom is neutral (has no ionic charge) the number of these equals the number of protons.