Which method of food preservation uses eat to destroy microorganisms?
What is pasturization.
100
Melting ice is an example of which type of change?
What is physical change.
100
What is the difference between periods & families of the periodic table?
What is period- horizontal rows
families/groups- vertial rows
100
The physical appearance of an organism is called?
What is a phenotype
100
Instead of using public sanitary seweres, waste is disposed using a ?
What is a septic system.
200
Bacteria stops growing from salt, acids, & vinegar. What type of food preservation is this?
What is pickling
200
Liquids that form different layers must have different?
What is densities
200
What do you call the electrons in the outer shell?
What is valence electrons
200
In human reproduction, the zygote develops into a fetus where?
What is the uterus.
200
What is run off?
Rain that falls on a paved street after large storm.
300
What are the 4 c's of food preservation?
What is cooking, cleaning, cross contamination, cooling
300
A mixture where you can see the particles easlily separating and then settling is called a __________ mixture?
What is suspension.
300
What is the chemical sybol for potassium
What is K
300
Sexual reproduction results in a zygote formed by ?
What is combining 2 germ cells.
300
An area where you can locate specifically where the pollution is coming from is called?
What is point pollution.
400
During the milk lab, what did you notice about the bacteria growth when the test tube was put in the fridge compared to the test tube out in room temperature?
What is bacteria slowed down its growth.
400
What is the density of a substance with a masss of 400 grams and a volume of 20 cm3?
What is 20 g/cm3
400
If there is a pH of 7, the solution is?
What is neutral
basic - lower than 7
Acidic - higher than 7
400
Gregor Mendel studies inheritance of characteritics using?
What is pea plants.
400
What is hypoxia?
What is low levels of oxygen dissolved in the water causing animals & plants to suffocate and die out.
500
What type of bacteria is common to live on polutry when it has been left out for a while?
What is salmonella
500
What is the difference between solute and solvent?
What is solute- what is being dissolved
solvent- solution where solute has been dissolved in.
500
Where on the periodic table are the most reactive metals found?
What is left side of periodic table. reacts mostly with nobel gasses.
500
If a strande of DNA has nitrogen bases TTGAC, what is the other side of bases?
What is AACTG
500
Why is LIS 's zone's so important?
What is the different species and environments that live and grow there.