Metric System
What unit is used to measure mass?
Grams ( g) or Kilograms ( Kg)
An object is most likely to sink in water if _________________.
It has a higher density.
Is a force created by water that is displaced by an object....
Buoyancy
Occurs when multiple trials or set of measurements are made during a scientific investigation
REPETITION
A tentative explanation about possible results.
HYPOTHESIS
What is the unit to measure volume?
Liter ( L)
milliliters ( ml)
cubic centimeters ( cm3)
A ball has a mass of 33.6 grams and a volume of 14.0 cubic centimeters (cc). What is its density?
2.4 g/cc
Between mass and weight of an object, which one is a force ?
The WEIGHT
Using one or more senses in scientific inquiry.
Observation
The variable that you change in the experiment on purpose.
Independent Variable
What is the unit to measure Weight?
Newtons ( N )
Pounds ( lb )
Is seawater more or less dense than freshwater?
What is the density of seawater?
Seawater is more dense than freshwater.
The density for seawater is 1.03 g/mL
Which of the following characteristics of matter can not be zero?
The Mass or the Weight
The MASS
Occurs when a scientific investigation is reproduced by another person.
REPLICATION
To examine methodically by separating into parts and study their connections.
ANALYZE
What is the unit to measure Pressure?
Pascals ( Pa )
How do you measure the volume of a regular object?
Take the object, use a ruler and measure its length, width and height.
L x W x H
A chair has a mass of 10 kilograms on Earth. What is the mass of the chair on Mercury?
10 kilograms
The same mass.
Identify factors that can be changed or controlled.
VARIABLES
The variable usually being measured or observed, that is influenced by another factor.
Dependent Variable
What is the unit to measure density ?
mass/ volume
g /ml
g/cm3
How Archimedes find out the density of the gold crown of Hieron King of Syracuse, without taking apart parts?
He submerged the crown in his bathtub, discovering it was not pure gold as the goldsmith claimed.
The force of gravity on the surface of Mercury is much less than on Earth. A rock has a weight of 100 newtons on Earth. What do you know about the weight of the rock on Mercury?
The rock will weigh less than 100 newtons.
A term use to describe the certainty of data or results of an investigation.
VALID
VALIDITY
A group that is untreated by the factor being tested, serves as a reference for comparison.
CONTROL GROUP
Constants