Variables
Unit Conversions
Measuring
Vocabulary
Other Science Stuff
100
A new type of mosquito spray hits the market. In order to test its effectiveness, Tom sprayed different amounts of spray on 10 people and counted the amount of mosquito bites each of his participants had after 2 hours.
What is the independent variable in this experiment?
Amount of mosquito spray
100
Convert the following metric units:
5320 mg = ___ cg
532 cg
100
How many mL are in the test tube shown below?
25 mL
100
Term: ?
Definition: The variable that is being altered or changed by a person running an experiment.
Independent Variable
100
(1) I think that Mr. L spilled coffee on his shirt on his way to work this morning.
(2) I see a stain on Mr. L's shirt just below his collar.
Which one of these statements is an observation?
2
200
Nancy is curious if the amount of rainwater a plant gets affects how tall the plant grows. She gives 5 plants different amounts of rainwater each day and measures their growth after one week.
What is the dependent variable in Nancy's study?
Plant height
200
Convert the following metric units:
115 cm = ___ m
1.15 meters
200
How many centimeters are on the ruler shown below?
1.7 cm
200
Term: ?
Definition: Variables that need to stay the same throughout the entirety of the experiment (can only test one thing at a time).
Controlled/Constant Variable
200
Based on the graph below, what happens to the distance traveled as time decreases?
Distance also decreases
300
Greg thinks that spraying lemon juice on apple slices will prevent them from turning brown. He sprays different amounts of lemon juice on 5 apple slices and evaluates how brown they turn after 1 day in the fridge.
What are the independent and dependent variables in Greg's experiment?
Independent Variable: Amount of lemon juice
Dependent Variable: Brownness of the apple
300
Convert the following metric units:
807 L = ___ kL
0.807 kL
300
How many mL are in the test tube shown below?
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6.6 mL
300
Term: Dependent Variable
Definition: ?
The variable that you are measuring/evaluating throughout the experiment.
300
What are the three types animals we talked about in class that are considered cold-blooded?
Reptiles
Amphibians
Fish
400
What is the independent and dependent variables in this experiment?
Independent: Time
Dependent: Temperature
400
Convert the following metric units:
0.0921 hm = ___ mm
9210 mm
400
How many meters are shown in the image below?
0.036 meters
400
What is the difference between an inference vs. an observation?
Inference: Coming to a conclusion about something that is occurring based on observations made.
Observation: Using your 5 senses to notice what is going on in front of you.
400
In a dog park that is 1 square kilometer, there are 25 people, 5 oak trees, 3 alligators, 15 male dogs, 2 doors, and 17 female dogs. What is the population density of dogs in the park per square meter?
0.027 dogs per square meter
500
Claire wants to see if eating vegetables each day has an effect on how much weight a person would lose. She has one group each vegetables daily, and another group not eat vegetables at all and measures their weight after one week.
List at least 3 controlled/constant variables in Claire's experiment.
Type of vegetable, how many meals each person eats per day, how much water each person drinks, how much other food people eat during the week, how much sleep each person gets, how much exercise each person gets, when each person eats.
500
Convert the following metric units:
16.48 dg = ___ kg
0.001648 kg
500
How many hectoliters (hL) are shown in the test tube below?
0.00083 hL
500
Name at least 6 characteristics that things need to have in order to be considered "living".
Made of Cells, Exhibit Reproduction, Based on universal Genetic Code, Growth and Development, Metabolism through chemical reactions, Respond to environmental stimuli, Physical stability through Homeostasis, Adapt and Evolve over time, Interaction with environment (Ecology)
500
What is the saying that helps us remember the metric conversions table Mr. L usually provides for you?
King Henry Died By drinking Chocolate Milk