Metric System
What is the metric system?
An international system of measurement that uses a base 10 model used to take measurements of grams, meters and liters
What is a chemical property?
A property of matter that can only be observed once a chemical reaction occurs
What is a physical property?
Any property of matter that can be observed without a chemical change
How many grams is in 1 Newton?
100g
This is one of the only mammals to lay eggs. It is also venemous.
Platypus
Why do we use the metric system?
It is precise and accurate.
List (3) indications of a chemical reaction
What is density?
The relationship between mass and volume of a substance?
3.1 g to mg
3100mg
Why is the sky blue?
The scattering of blue wavelengths of light in our atmosphere
The metric system is also known as the "SI" system of measurement. What does this mean?
Systeme Internationale
List (4) chemical properties
Reactivity, flammability/combustibility, toxicity, coordination number, oxidation, corrosivity, chemical bonding
Why is burning wood NOT a physical change?
Because when you burn wood, you create a gas, soot and burn the substance. This is a chemical change. You cannot get the wood back afterwards.
8g/mL
What is the biological term for butterflies that group together on the ground to intake salts and minerals?
puddling
List the metric table in order from biggest to smallest with the base units
Kilo Hecto Deca -base- deci centi milli
An element in a tube changes from a liquid to a gas when exposed to heat. Explain whether or not this is a chemical or physical change.
Physical. Changes of state are always physical.
List (6) physical properties
Density, malleability, ductility, thermal conductivity, change of state, solubility
What is the equation for density?
D=m/v
What is the technical term for warning coloration exhibited by animals such as the milk snake?
Aposematic coloring.
What is larger? 2.45kg or 2,450g?
You mix kool aid powder into water to form a solution. The pale red powder then turns bright red when mixed with water. Is this a chemical or physical change?
Explain how the density equation explain what matter is?
Matter is defined as anything that has mass and takes up space (volume). The density equation, also a physical property of matter, is the relationship between mass and volume of a substance.
What is the mass when volume is 12mL and density is 6g/mL?
72g
m= D x V
What does GMO stand for?
Genetically Modified Organism