LAB Safety
You should always protect your eyes with
Safety Goggles or Eye Goggles
What is an Hypothesis
An educated guess on what you think will happen in an experiment
Substance is Water
Mass=100
Volume=100
Whats the Density
1
What is Matter?
Anything that takes up space
Changes from a solid to a liquid
Melting
What do you use to put out Fires
Fire Extinguisher
What is an Inference
What you conclude about based off the observation
Substance GOLD
Mass= 200
Volume= 10.35
Whats the density
19.32
Where can you find ELEMENTS
On the periodic table
Changes from a liquid to a gas
Vaporization
What type of shoes should you have on during a lab
closed toed shoes
Definition of Scientific Method
An organized set of investigation procedures used by scientist
Density =
Mass divided by Volume
What is a Compound
Two or more elements bonded together
The temperature at which a liquid becomes a solid
Freezing Point
Are you responsible for others in the lab during an experiment
YES
What is the Independent Variable, and what axis does is fall on
The variable that you can change and the X-axis
What is Oxygen's Atomic Mass number
8
2 types of Mixtures
Homogeneous Mixture
Heterogeneous Mixture
HEAT =
Thermal
How do you prepare for an experiment
3 parts
Read what you need for the experiment, get proper materials out for the experiment,put on the proper protective clothing
Whats all the steps in the Scientific Method
1. Identify the Problem
2. Research the Problem
3. Form an Hypothesis
4. Results/Data
5. Conclusion
What is GOLD's atomic Mass Number
79
Sodium Metal + Chlorine Gas = what type of Compound
Table Salt
Changes from a solid directly to a gas
Sublimation