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Lab Equipment
Lab Safety
Scientific Method
Random
Ecosystems
100
This is a piece of equipment that you use to magnify specimens in the lab, using objectives.
Microscope
100
In order to smell something in the lab, always
waft, use a wafting motion
100
If people drink 4 alcoholic drinks, then they are more likely to crash when driving, because alcohol impairs your judgement. This is an example of what STEP of the scientific method?
hypothesis
100
aero- means
air
100
What are the three types of symbiotic relationships?
parasitism, mutualism, and commensalism
200
Name the piece of equipment you use to measure liquid volume accurately, using the meniscus
Graduated cylinder
200
What types of shoes are allowed in the laboratory?
closed-toed shoes
200
At the end of an experiment you rewrite you hypothesis, and then state whether is was correct or incorrect. You should also write any errors or things to improve. What step of the scientific method is this?
Conclusion
200
Biotic means:
living
200
This shows energy flow, in an ecosystem, through overlapping food chains.
food web
300
Name the equipment that you use to swirl, mix, or store liquid chemicals in; but, it is not good for measuring liquids.
Erlenmeyer flask
300
How do you mix water and acid?
Always pour acid INTO water! Never do it the opposite!
300
In an experiment besides the Independent Variable (the one variable you change), all the other factors must remain the same. If not, it may ruin your data. What are these factors known as what in the experiment?
constants
300
What are four types of heterotrophs?
omnivores carnivores herbivores detritivores
300
Otters float on a sea grass called kelp, in the ocean. It provides them a place to float and eat. Sea urchins eat the kelp, but otters eat sea urchins. What kind of symbiotic relationship exists between the kelp and otters?
mutualism
400
When you need to measure the mass of something as precisely as possible (in grams), what piece of equipment do you use?
triple beam balance
400
A student splashes chemicals in his eyes and on his clothes. What should he do?
Wash his eyes and body, with running water, for several minutes
400
What is the standard of comparison in an experiment called? You compare all data collected to this.
Control
400
Harold wants to know eating breakfast helps you do better on a test. He gets 10 friends who take science with him to do an experiment. 5 friends eat breakfast before their science test and 5 do not. After the test Harold records all their grades. What is the independent variable (thing you CHANGE) in this experiment?
Eating breakfast
400
There are 872 gray mice living in a square mile in Rockdale, TX. In the organization of living things, what do the mice represent?
population (they are all the same species in an area)
500
This piece of equipment is used to crush things into smaller pieces.
Mortar and pestle
500
When heating something in a test tube, always point it:
away from yourself and others
500
If you are making a graph, a. which axis is the independent variable graphed? b. which axis is the dependent variable is graphed?
a. x-axis (MIX) b. y-axis (DRY) must be in this order to be correct
500
Jody has itchy feet. Her friend Beth tells her soaking her feet in salt water will help. Her friend Mary tells her putting lotion on each night with socks will help. Jody decides to do an experiment and try both remedies. After 1 week her feet don't itch anymore. Jody decides both remedies worked. What is wrong with Jody's conclusion?
She tested both rememdies at the same time so there is no way to know if both really worked, or just one of them.
500
Which tropic level has herbivores in it?
Primary consumers