Vocab
What is a study of the natural world?
Science
Whats the formula for volume?
LxWxH
How many mm in a cm?
10mm
What is technology do for science?
It is used for practical uses.
What is matter?
Anything that has mass and takes up space.
What is volume?
The amount of space occupied by matter in an object
What is buoyancy?
The tendency to float.
how many meters in a kilometer?
1,000
Why use a prototype?
Use a prototype to see what improvements are to be made.
Why do you need data?
To analyze and draw conclusions.
independent variable:
A intentionally changed variable.
when does an object float?
When the object is less dense than the liquid it's in.
what's the unit of measurement for volume?
Liter
What is a trade-off?
To sacrifice one advantage for another.
how many meters in 160 cm?
16m
Dependent variable:
A variable changed because of the independent variable.
Whats the formula for density?
mass/volume
what does cm stand for?
centimeter
What is the order of the design process?
Find a need, brainstorm, find solution, prototype, evaluate, improve, and share.
Definition of an experiment?
Procedure under controlled conditions to test a hypothesis.
how do you observe things?
By using the 5 senses
would a object with the density of 2.8g/cc float in 1g/cc water?
Yes
what is the metric unit for mass
grams
What do models due?
calculate the laws of physics to know what the product can withstand.
A hypothesis has to be testable because..?
You have to prove it to be true.