Density
What two measurements make up density?
mass and volume
What is the SI unit scientists use for mass?
Grams
How close a measurement is to accepted value is called __________
Accuracy
What is all matter made of?
Atoms
What chemistry equipment was used to measure the volume of our irregular object?
Graduated Cylinder
What is the equation for density?
D = M/V
What is 9 meters in centimeters?
900 cm
__________ is a measure of how close measurements come to each other when they are made in the same way
Precision
Anything that takes of space and has mass is called?
Matter
If you are given mass and density, how do you solve for volume (what is the equation set up)?
V = D x M
A bar of copper has a mass of 216 g and a volume of 24 cm^3. What is the density of copper?
9 g/cm3
What is the saying/acronym that helps us remember the order of metric prefixes?
King Henry Died Unexpectedly Drinking Chocolate Milk
All the data points are close together but far away from the target, describe this scenario in terms of accuracy and precision.
High precision, low accuracy
A piece of matter is set on fire and changes its chemical composition, is this a physical or chemical change?
Chemical
What lab equipment was used to measure mass of our irregular object?
Scale
Helium balloons rise on earth because
Helium is less dense than air
Is 20 g greater than, less than or equal to 2 kg?
Less than
A company claims to sell 15 candy pieces in each bag. Judy counts her bag and finds 14, Josh finds 16, and Jill finds 15. The company is...
Accurate and precise
There are two types of matter (that we study), pure substances and mixtures. Is ranch a mixture or a pure substance?
Mixture
What was the process we used called when measuring the volume of our irregularly shape object?
Water displacement
Hayden has a paperclip. It has a volume of 3cm^3 and a density of 3g/cm^3, what is the mass?
9 grams
What is 240 cm in km?
0.00240 km
Measurements: 2.5, 14.5, 10.1, 45.3
True Value: 25.0
These measurements are...
Pure substances is a type of matter. This includes compounds and elements. A compound is when more than 1 atom combine, while an elements has only one kind of atom present.
Is Water a compound, or an element?
Compound, H2O
Why do scientist use SI units instead of units used in the United States?
To be able to read and share data with the world.