Nature of Science
In an experiement this is the first step of an investigation
make an observation
How will the mass of an astronaut change on Jupiter?
It will not change.
What is the density equation?
D=m/V
What is the boiling point of water?
100C
Define weight
the measurement of mass and gravity on an object
In an experiment, this is when someone else repeats your experiment
replication
How will the weight of an astronaut change on the moon?
it will decrease
Bobby wants to calculate the density of some shapes. He knows their mass, but what else does he need?
Their volume.
What phase of matter has particles rigid, and close together?
Solid
What property of matter is defined as the amount of space something takes up?
volume
Why is it nessacary to replicate and repeat your experiment
To validate the experimental results
What factor does not change, not matter where you are in the universe?
Mass
Calculate the density of an object with a Mass of 12 g and a volume of 4 mL.
3 g/ml3
What phase of matter has a fixed volume but unfixed shape
liquid
In this image, what is the solvent?
B
What are the three words needed in a hypothesis? You must write all 3 to earn credit
If/Then/Because
What is this picture displaying?
Gravitational Force
Bobby has an apple. He cuts it in 8 peices to share. What property about the apple did not change?
density
What vocabulary word describes the movement of water particles only at the top layer of water turning into gas?
Evaporation
This word means that it is true everywhere in the universe, and is often supported by mathematical equations.
Scientific law
In a conclusion, how would you correctly state that your results and hypothesis are the same?
Results support the hypothesis
What is the gravitational force dependent on? (Two things, must answer both correctly for points)
mass and distance
Bobby found 3 items in his backyard. Their volume and mass is listed below. Put the items in order from most to least dense.
Item 1- Mass= 50 g, Volume= 2 mL
Item 2- Mass= 10 g, Volume= 5 mL
Item 3- Mass= 15g, Volume= 1 mL
1,3,2
Changes in _____________ result in changes of phase.
temperature
Bobby wants to investigate the effects of sugar on plant growth. In his experiment, what is the amount of sugar defined as?
Independent Variable