Density
The amount of "stuff" an object contains is called
Matter
What are producers
plants
When a liquid changes to a solid
Freezing
What are isotopes?
Isotopes have the same number of protons but different numbers of neutrons
A bike rusting is an example of what kind of change?
chemical
What is density
**HINT: 2 vocabulary words**
Mass and Volume of an object
What is a herbivore
An animal that eats plants only
Evaporation is the phase change where
a Liquid changes into a gas
If a Neon atom has 10 electrons, how will they fit in electron shells?
2 will fit on the first electron shell and 8 will fit on the second
Milk souring is an example of what kind of change?
chemical
Typically expressed in units of grams
Mass
An animal that only eats meat
Carnivore
How would draw the particles of a liquid
Particles are loosely packed, just sliding past one another
If a Lithium atom has 3 electrons, how will they fit in the electron shells?
2 will fit on the first electron shell and 1 will fit on the second
Sharpening a pencil is what type of change?
physcial
How do you determine is an object will float by looking at its density?
a) Look at the number that is greater than 1 g/mL
b) Look at the number that is less than 1 g/mL
c) Look at the number that is closest to 1 g/mL
d) Look at the number that is equal to 1 g/mL
b)Look at the number that is less than 1 g/mL
What would happen if all plants were destroyed. Name two organisms it would affect.
It would affect insects, mice, bird, any animals that eat grass, as well as animals that eat these animal because if they cannot get their energy from food then they will die out
Condensation is the phase change where
a Gas changes to a liquid
Identify the independent and dependent variables, and the constants:
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid of this slime by adding lemonade juice. You spray half of the shower with lemonade juice and spray the other half of the shower with water. After 3 days of “treatment”, there is no change in the appearance of the green slime on either side of the shower.
IV: lemonade juice and water
DV: How clean the bathroom is, if there is any slime
Constant: Same amount of liquid
What is a physical change defined as?
No new substance
If a substance has a greater mass, what does this tell you about it's density?
a) It will be greater
b) It will be less
c) It will be the same
d) It will not matter
a) It will be greater
Identify as either the producer, carnivore or herbivore
Example: Fox -> rabbit ->carrot
the carrot: the producer
the rabbit: the herbivore
the fox: carnivore
How are the particles in a solid change to the particles of a liquid called
Melting
Identify the independent and dependent variables, and the constants:
One tank of goldfish is fed the normal amount which is once a day; a second tank is fed twice a day; and a third tank is fed four times a day during a six-week study. The fishes’ body fat is recorded daily.
IV: Amount of fish food fed
DV: Amount of fish body fat
Constant:Same type of goldfish, fed the same food, at the same time of the day
What is a physical change and a chemical change you can do with paper?
tearing paper, burning paper