Test 1 Flashcards
4 states of matter
Gas, liquid solid, plasma
What is temperature
the measure of heat in an object
What describes a liquid
Has a definite volume and takes the shape of its container
What describes a gas
It expands and flows freely and the molecules are spread far apart
What is volume
the amount of space an object takes up
What is mass
how much matter is in an object
Which of the following is what we use to measure length?
inches, feet, yards, and miles
What is matter
Anything that has mass and takes up space
What do we use to measure the temperature?
Thermometer
What describes a solid
Molecules are packed closely together
What is length
the measurement of something from end to end
What are the two different units that temperature can be measured in?
celsius, fahrenheit,
What do we use to measure the length?
Ruler tape measure meter stick
What do scientists use to observe different types of matter?
Sight touch smell
I can find the VOLUME of an irregular solid by….
Adding it to a graduated cylinder with water and calculating the difference in water level.
Changes with location in the universe
Weight
What unit of measurement would be appropriate when measuring the length of your textbook?
Cm/centimeters
What is mass
a measure of how much matter in present in a substance or object; measured in grams, g
volume formula
LxWxH
Three things needed for fire
Oxygen, heat fuel
How do scientists study matter
By breaking things down
Four forces of the universe
Electromagnetism, gravity, strong nuclear force, weak nuclear force
Matter is made up of…
Tiny particles
Can things be multiple matters
Yes
The average kinetic energy of a substance
Definition of temperature
True or False: water boils at a lower temperature the higher in the atmosphere
True
Water molecules look like…
Mickey mouse
Crude oil
Unprocessed oil
crude oil comes from…
Ocean plants
How many sig. figs.
45364
5
How many sig. figs.
10209
5
How many sig. figs.
0.006
1
How many sig. figs.
123400
4
How many sig. figs.
93500000
3
Homogenous
Same
ex. Cola
Heterogeneous
Different
ex. Chicken noodle soup
True or false
All mixtures can be seperated into different types of matter
True
True or false
Substance can be seperated into different types of matter
True
True or false
Elements can only contain one type of matter
True
Homogenous mixture…..
Only one type of matter
Heterogeneous mixture
More than one type of matter
Element
Only one type of matter
Compound
More than one type of matter
What is the curve or valley called on the surface of water
Meniscus
Explain the displacement method
Add object to water and however much the water rose it the volume
Oxygen
O2
Nitrogen
N2
Metric system is based on….
Units of ten
Density formula
D=m/v
Is carbon dioxide a mixture or a substance
Substance
Is salt water a mixture or a substance
Mixture
Is the air we breathe a mixture or a substance
Mixture
Is uranium a compound
No its on the periodic table
Is hydrogen a element
Yes because it’s on the periodic table
Is water a solvent
Yes
True or false
Do solvents do the dissolving
True
Do the solutes get dissolved
Yes
If the side of a wooden block is 21.25 which digit was guessed
Hundredths place
True or false
Water will boil at a lower temperature if it is on top of a mountain or here in wichita
True, water boils in higher altitude
What did we make in the destructive distillation of wood lab
Charcoal
How many sig. figs.
1.0050
5
True or false
Scientist guess the last digit of the number
True, like 5.32
The two is guessed
How many sig. figs. 405
3
How many sig. figs. .0021
2
How many sig figs. 360.0
4
Do you round answer to least amount of sig figs
Yes
