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Light
Science Experiments
Microbiology
Microbiology II
Heat
100
List 4 natural sources of light.
The sun, stars, lightning, fire, fireflies, hot lava.
100
If a student does not make a hypothesis, will the experiment still work?
Yes. Not all experiments needs a hypothesis.
100
Name one fact about all bacterial
They have no nucleus, are smallest, are most simple of the living things.
100
Name 3 ways protists can move in water.
Cilia, pseudopods, flagella.
100
Define frequency.
The number of vibrations per second.
200
Explain what happens when light is being refracted.
It is being bent when it passes from one medium to another.
200
What do we call the answer to an experiment?
The conclusion...
200
What is pasteurization?
When milk is heated only enough to kill the bacteria, then cooled quickly so no more bacterial grow.
200
What do you know about a microorganism that is green?
It can make its own food.
200
Does sound travel faster through solids, liquids, or gases? Why?
Fastest through solids - the molecules are closer together.
300
Compare a pencil in water to a pencil in Karo syrup.
It will be refracted in both, but the pencil in Karo syrup will be refracted more because it is a thicker liquid.
300
What is a control in an experiment?
The thing that doesn't change.
300
How "big" is a paramecium?
One cell.
300
Name two diseases caused by bacteria.
Food poisoning (botulism), strep throat, bacterial pneumonia, etc.
300
In this classroom, where would the warmest air be found?
Toward the ceiling.
400
List all the colors of the spectrum in order from longest to shortest wavelength.
ROYGBIV
400
How many things should we change in an experiment?
One.
400
How does adding yeast change bread dough?
The yeast produces... bubbles of gas... which make the bread rise.
400
List 3 ways in which microorganisms are helpful.
Decompose dead things, help us digest, make food items - cheese, sauerkraut, etc.
400
Heat traveling from a gas furnace is an example of ....?
Convection.
500
Why does an object appear to be green?
Because it reflects green.
500
How could you experiment to see if the sun's angles change between winter and spring?
Measure the lengths of shadows.
500
Where do most fungi grow?
In dark, damp places.
500
Some of the diseases caused by viruses are a. mumps, flu, cold, meningitis, strep throat OR b. E. coli, stomach ache from pink meat, cold sores OR c. flu, cold, AIDS, mumps, chicken pox OR d. pneumonia, tonsillitis, boils, typhoid fever
c. flu, cold, AIDS, mumps, chicken pox
500
Name three ways heat flows.
Conduction, convection, radiation.