Scientific Method
a scientific problem solving strategy
What is the Scientific Method?
The widely used system of measurement we will use in science class.
What is the metric system?
A comparison of how much matter there is in a certain amount of space.
What is density?
The amount of matter in an object.
What is mass?
an educated guess
What is a hypothesis?
the SI Unit of measurement for mass
What is the gram?
The equation to calculate density.
What is D=m÷v?
How much space matter takes up.
What is volume?
the correct format for a hypothesis
What is an "if... then, because" statement.
How many milliliters are in 1 liter?
1000 ml
Calculate the density of a metal sample that weighs 44 g and has a volume of 11 cm3.
D= m÷v
=44 g ÷ 11 cm3
=4 g/cm3
Calculate the mass of a 2 cm3 piece of gold. Gold has a density of 19.3 g/cm3.
What is 38.6 grams?
A valid hypothesis for the following investigation: Does the type of soda affect the reaction with Mentos candy?
Answers will vary.
How many milligrams are in a kilogram?
1,000,000 milligrams
Calculate the density of 90 milliliters of a liquid that weighs 135 grams.
D=m÷v
=135 g ÷ 90 ml
=1.5 g/ml
Calculate the volume of a 96.5 gram piece of gold. Gold has a density of 19.3 g/cm3.
What is 5 cm3?
What can you do with an unsupported hypothesis?
How many decimeters are in 4.75 kilometers?
4,750 decimeters
Find the density of a cubic object that has side lengths of 4 cm and weighs 256 grams.
v=4 cm × 4 cm × 4 cm
=64cm3
D= m÷v
=256 g ÷ 64cm3
=4 g/cm3
Calculate the mass of a brick with dimensions of 2cm x 3 cm x 2 cm. The brick has a density of 2 g/cm3.
What is 24 grams?