Bell ringers
T or F: The more you have of a substance, the higher the melting point
FALSE
A prediction about your experiment.
What is a hypothesis?
Ice melting
What is a physical change
These are the states of matter
What is solid, liquid, gas, and plasma
All matter is made up of these
What are atoms
Independent of the amount/ size of substance
What is an intensive property?
ex: density
What is manipulated in an experiment
What is the independent variable?
Volume, mass, weight
What is an extensive property?
In this form of matter, particles are moving freely and rapidly.
What is a gas?
Positively charged subatomic particle
What is a proton?
Property of matter in which a substance can transfer heat or electricity.
What is conductivity?
The reason you replicate experiments numerous times
What is accuracy ?
Roasting smores during a campfire
What is a chemical change
Total mass of products must equal total mass of reactants
What is conservation of mass?
These are found in the outter orbital shell
What is an electron?
This is used to determine the volume of an irregular object
What is a graduated cylinder
states whether your results support or contradict your hypothesis.
What is a conclusion
Explains why copper is often used in electrical wiring
What is Conductivity?
Volume of a rectangular prism:
length: 4cm
Width:2cm
Height:2cm
*must answer with proper units
16 cm3
Number of protons in Mercury.
What is 80?
Unscramble:
yostiiullb
solubility
Ways data can be displayed
What are charts, graphs, tables, and graphic organizers?
Happens when a solid changes directly into a gas without becoming a liquid first
2H2 + 2NO2 = __H2O + N2
2
First scientist to compose the atomic theory
Who is James Dalton?