Show:
WHMIS
Theories and Laws
Scientist's
Electrons and Protons
Physical and Chemical properties
100
Workplace Hazardous Materials Information Systems
What does WHMIS stand for?
100
Atomic
What is the name of the theory that scientists had an understanding of matter?
100
Atomic theory
What is John Dalton's theory?
100
A stable subatomic particle with a charge of negative electricity, found in all atoms.
What is an Electron?
100
Any property used to characterize matter and energy and their interactions.
What is a physical property?
200
For safety and to know different safety symbols
Why do we use WHMIS?
200
In science, a laws are description of events, patterns or relationships that have been observed over and over again. Laws do not provide explanations-they simple states what happens.
What is the difference between a a theory and a law?
200
Bohr model
What is Niels Bohr famous for?
200
A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.
What is an Proton?
200
A property used to characterize materials in reactions that change their identity.
What is a chemical property?
300
Because If we didn't have WHMIS we wouldn't know what different chemicals are safe to use in a science lab
Why is the WHMIS systems important?
300
stand the test of time and became generally accepted.
What is some theories?
300
The raisin bun model
What is J.J Thomson known for?
300
Electrons have a negative charge
What kind of charge does electrons have?
300
Physical properties: are those that can be observed without changing the identity of the substance. The general properties of matter such as color, density, and hardness, are examples of these. Chemical properties: are properties that determine how a substance changes into a completely different substance. Flammability and corrosion or oxidation resistance are examples of these.
What is the difference between a chemical and a physical property?
400
To understand what types of chemicals are safety enough and also are appropriate to use in the science lab
What is a reason that students should have to learn what WHMIS stands for and means?
400
Laws are constant, but theories may change as new facts became available.
What is constant and changing?
400
The gold foil experiment or the Rutherford experiment
What is the name of Ernest Rutherford's experiment?
400
Protons have a positive charge
What kind of charge does protons have?
400
A glass cup falls from the counter and shatters on the ground.
Which of the following is an example of physical change? a. Mixing baking soda and vinegar together, and this causes bubbles and foam. b. A glass cup falls from the counter and shatters on the ground. c. Lighting a piece of paper on fire and the paper burns up and leaves ashes. d. Baking a birthday cake for your mother.
500
Information
What is the I in WHMIS stand for?
500
Law- something that has been proven correct and true numerous times Theory- a guess/belief that something is true, not necessarily correct, some people may support it, others not.
What is the difference between a scientific law and a scientific theory?
500
Isaac is famous for inventing the reflecting telescope
What is Isaac Newton famous for?
500
False
True or false Electrons are particles that have a single positive charge, and are located in the outer region of the atom.
500
A plant collecting sunlight and turning it into food.
Which of the following is an example of chemical change? a. Filling up a balloon with hot air. b. Taking a glass of water and freezing it by placing it in the freezer. c. A plant collecting sunlight and turning it into food. d. Your dog ripping up your homework.