Lab Safety
This safety item prevents materials and chemicals from getting into a scientist's eyes
What are safety goggles?
Who is known as the "father of the atomic theory" and proposed that atoms are indivisible?
Who is John Dalton?
This subatomic particle has a neutral charge and a mass of 1
What is a neutron?
This scientific explanation can be tested and tends to utilize this form: If...Then...
What is a "hypothesis"?
What is the first step in the scientific method?
What is asking a question or identifying the problem?
This is the first step that you should take after there is an accident, breakage or spill in the science lab
What is tell the teacher? (Ms. Bush)
What was the name of the philosopher that first proposed the term "atomos" for matter that was made of tiny particles?
Who is Democritus?
This is the term for the number of protons in an atom. It can also be used to find elements on the periodic table
What is the atomic number?
If a chemical is added to a solution, then the color will change.
What is the correct scientific explanation for this statement?
What is a hypothesis?
Models represent these collections of objects that influence each other and form a unified whole, such as a car
What are systems?
What method do you use to safely smell a chemical in the lab?
What is wafting?
Which scientist discovered the neutron?
Who is James Chadwick?
This is where electrons can be found inside an atom
What is the electron cloud?
This scientific explanation is supported by repeated investigations with consistent results and they are highly reliable, but may change with new scientific discoveries. What are these explanations called?
What is a scientific theory?
This step of the scientific method includes creating an educated guess towards the outcome of the experiment.
What is the hypothesis?
What is the proper way to dispose of broken glass in the lab?
What is place it in the designated broken glass container?
What law demonstrates the idea that "matter cannot be created nor destroyed"?
What is the Law of Conservation of Mass?
This is the term for the combined mass of the protons and neutrons in an atom
What is the atomic mass?
What distinguishes a scientific law from a theory?
A law describes what happens under certain conditions, often mathematically, while a theory explains why or how it happens.
What term describes the variable that scientists change intentionally in an experiment? (manipulated)
What is the independent variable?
The safety item is used when someone is covered in hazardous material
What is the safety shower?
This scientist developed the Plum Pudding model of the atom
Who is JJ Thomson?
Name the 3 subatomic particles and their properties (mass, charge and location)
Proton (positive, nucleus, 1 amu)
Neutron (neutral, 1 amu, nucleus)
Electron (negative, 0 amu, electron cloud)
What is the term for a scientific statement that is always true under specific conditions and can be expressed mathematically?
What is a scientific law?
This step is known as the "headline" and depicts what the result was of the experiment
What is the conclusion?