The function of a bar graph is to compare data vertically.
100
What is the difference between Homogenous and Hetergenous mixtures?
Heterogenous mixtures does not look the same throughout, and particles are large enough to be separated from the mixture. Homogenous mixtures look the same throughout, and are very well mixed that they are not easily reconizable
100
Atoms do what to fulfill their energy levels?
Atoms BOND together to fulfill their energy levels
100
Why do atoms share electrons?
To fulfill their missing electrons in their energy levels
100
What is Mr. Sterk's first name?
Heath is his first name
200
What is Mass? What is volume?
Mass is what's inside an object, and volume is what can fit inside an object.
200
Name something that can switch between the three main states of matter?
Water can switch between the three main states of water.
200
What does the atomic number means in an element of the periodic table?
The atomic number are the number of protons in an atom.
200
If I give you a baking soda solution, what does that mean?
It means that baking soda is dissolved into H2O particles
200
What is the main chemical produced when mixing vinegar and baking soda?
The main result is Carbon Dioxide
300
State the difference between Science and Pseudoscience
Science does follow the scientific method, can give supporting evidence, and is reliable
Pseudoscience does not follow the scientific method, has no supporting evidence and can't be tested
300
Name one solid that is able to skip the melting point and become a gas
Dry Ice
300
What is the electron cloud in an atom?
The electron cloud is the space in which fast-moving electrons are found
300
A double bond is when....
Is when 2 pairs of electrons are shared between bonds
300
What is the cheapest time to buy gas?
At about sunrise, since gas particles are packed up together due to the coldness of the night.
400
What is needed to make something float in water? A higher density than water's? Or a lower density than water's?
Explain.
You need a lower density because it exerts a force on the water due to gravity, that makes is float
400
Is Ooblek a liquid or solid?
It is a liquid, but when pressure is exerted, it acts as a solid
400
How many electrons fit in the first three energy levels each of an atom?
1st Level: 2
2nd Level: 8
3rd Level: 18
400
List two properties of Covalent Bonds
-They have lower melting points
-They are poor conductors of electricity
400
Why should you never trust atoms?
Because they make up everything
500
What are the steps followed in the scientific method?
What is radioactivity? And how does half-life affect radioactivity?
Radioactivity is the emition of high energy particles of waves from certain atoms, and the atom is unstable. Half-life affects radioactivity because when radioisotopes begin to decay, the radioactivity levels emited from the atom start to go down.
500
What are the elements that make up NH3?(Amonia)
Nitrogen + 3 Hydrogen Atoms, which make up Amonia
500
How much water we placed on the bottle we used for our Bottle Rockets?