Density
What is the density equation?
D = M/V
How many sig figs?
3.450 x 103
4
What is usually the first step of the scientific method?
Observe
Base unit for time?
seconds (s)
What is the symbol for meters?
m
What is the density of an object that has a mass of 15 g and a volume of 3 mL?
5 g/mL
How many sig figs 0.00234?
3
What is a hypothesis?
Base units for length?
Meters (m)
What is the symbol for centimeters?
cm
The units for the density of an object is grams per cm3. What would the units of the volume be?
cm3
Round this to have 3 sig figs.
251521
252000
Is there a universal sequence to the scientific method?
Nope!
Base Units for mass?
kg
What is the symbol for liters?
L
The volume of an object is 20 mL and the density is 10 g/mL. What is the mass?
200 g
85.1/12 =
7.1
You want to test what the best soil is for plant growth. What is the independent variable?
Type of soil
Base unit for temperature?
Kelvin (K)
What does dg stand for?
decigrams
The mass of an object is 45 g and the density is 8 g/mL. What is the volume?
5.625 mL
52.8 + 96.254 =
149.1
What is a control in an experiement?
An untested element to compare to the tested ones.
Base Unit for the amount of a substance?
Mole (mol)
What is the symbol for kilograms?
kg