Show:
Atoms
Elements and Compounds
Density, Mass and Volume
The Scientific Method
Physical and Chemical Changes
100
This is the smallest unit of matter.
What is Atoms?
100
What is matter?
What is anything that has mass and takes up space?
100
A block of wood 3.0 cm on each side has a mass of 27 g. What is the density?
What is 1 g/cm3
100
The first step of the scientific process
What is defining the problem?
100
Snow melting
What is a physical change?
200
Atoms contain three smaller particles. Name them.
What is protons, neutrons and electrons.
200
What is the density of carbon dioxide gas if 0.196g occupies a volume of 100mL?
What is 0.00196 g/mL
200
Name two common habits/ characteristics of a scientist.
What is Careful observation, objectivity, skepticism, logic, creativity and curiosity
200
Teeth crushing food
What is a physical change?
300
This is housed in the nucleus of an atom
What is protons and neutrons?
300
Water is an example of this.
What is a compound/molecule
300
A 10.0 cm3 sample of copper has a mass of 896g. What is the density of the copper?
What is 89.6g/cm3
300
What are the two types of variables in an experiment?
What is independent and dependent?
300
Making salt by mixing sodium (Na) and chlorine (Cl) together.
What is a chemical change?
400
The atomic number of an element tells the number of this in the element
What is the number of protons?
400
The atomic symbol for potassium is this.
What is K?
400
Silver has a density of 10.5g/cm3. What is the mass of 5cm3 of silver?
What is 52.5 g?
400
In an experiment this group does not change
What is the control group
400
A matchstick turns to ash while burning
What is a chemical change
500
The atomic mass tells this in an element.
What is the number of protons and neutrons in the nucleus.
500
When two or more elements are chemically bonded this creates this.
What is a molecule?
500
A sample of iron has the dimensions 2cm X 3cm X 2cm. If the mass of this rectangular shaped object is 94g, what is the density of the iron?
What is 7.83 g/cm3
500
After the hypothesis is formed, a scientist must create this.
What is the experiment
500
Stomach acid dissolving pizzza
What is a chemical change?