Meaning of Life
Meaning of Life and Science
Scientific Method
Variables
Graphs
100
Almost all human cells have DNA.
Which characteristic of life does this fact best describe?
All living things have a genetic code
100
What is the central theme of all science?
Asking questions
100
What skill is a scientist using when she listens to the sounds that whales makes.
Making an observation
100
In an experiment ________ variable is what is being tested, while the _________ variable is the response that is being measured.
Independent
Dependent
100
Which Statement can best be concluded from these data?
A) The respiration rate in both species does not affect both temperature and oxygen consumption.
B) The respiration rate of midge larvae increases more rapidly than the rate force a bird ticks at all temperatures.
C) As the temperature increases, the oxygen consumption and the respiration rate in both species decreases.
D) As the temperatures increases, the respiration rate in both species increases, with the rate for midge larvae being higher than that for seabird ticks at all temperatures.
D
200
This diagram displays which characteristic of life?
Growth and Development
200
Define Biotic vs. Abiotic
Living vs. Nonliving
200
What two words do you need to use in a hypothesis?
If, then
200
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water.
What is the experimental group?
The group(s) with salt in the water.
200
Examine the diagram below, and the trend seen by the two lines. Global temperature has been closely linked with the buildup of CO2 in the atmosphere. What is the DEPENDENT variable? Hint: DRY MIX!
CO2 Concentration
300
Both a fast-moving stream and a dog respond to the environment and grow and develop, but this characteristic of life is why a dog is considered alive, and a stream isn’t.
Being made of cells
300
The correct order for the hierarchy of life on Earth is: biosphere, ecosystem, population, community, organism.
True or False?
False
300
What's another term for defining the problem?
Asking a question
300
Gerald sees the leaves change color in the fall, so he thinks it must be the change in temperature causing leaves to change color. He decides to test this idea by placing leaves at different temperature and recording any color change. What is the INDEPENDENT Variable and DEPENDENT Variable?
Independent: The temperature
Dependent: The leaf color
300
Examine the diagram below, and the trend seen by the two lines. Global temperature has been closely linked with the buildup of CO2 in the atmosphere. What is the INDEPENDENT variable? Hint: DRY MIX!
Year
400
Below is a picture of person walking outside.
Which characteristic of life is represented in the picture?
respond to the environment
400
Which of the following are the four necessities of life?
oxygen, water, shelter, source of energy
400
A scientific explanation of known facts arrived at through repeated testing over time is a(n) ______
Theory
400
A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
The gender of the alligators.
400
A) Exposure to substance A likely causes asthma.
B) Exposure to substance B likely causes asthma.
C) Exposure to substance C Likely cause asthma.
D) Exposure to substance D likely causes asthma.
A
500
Before a big basketball game, Lamar always eats a healthy dinner. Which characteristic of life does this fact best describe?
Living things use energy
500
Which of the following characteristics of life is most important to a population of organisms as opposed to an individual
Living things must be able to reproduce.
500
What is the correct order of the scientific method?
Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
500
A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg. of fertilizer each day, and Plant C gets 10 mg. of fertilizer each day. Which plant is the control group?
Plant A
500
A family tested four different brands of spaghetti sauce to determine which one they preferred and would be the best buy for them. Each sauce was rated in a number of categories, with a rating of 4 being best and 1 worst. The results are shown in the table. According to the data, which statement is true?
A. Overall the family found sauce B the best
B. Overall the family found sauce C the best
C. It would be reasonable for the family to buy sauce D if cost is a major concern.
D. It would be reasonable for the family to buy sauce C if cost is a major concern.
C