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Unit 1 Review
Unit 1 Review
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Scientific Method and Characteristics of Life
Flashcards
36 cards
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Practice quiz
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Host live
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Questions
36
Answers
1
Ms. Buhmann made a hypothesis about a scientific question she has. What should she do next?
analyze her data
think of a different question
test her hypothesis
draw conclusions
2
After you perform an experiment, you must
analyze data
create a hypothesis
do the experiment again
research and ask questions
3
Experiment to test which temperature makes eggs hatch. What would be the dependent variable?
Eggs Hatching
Temperature
Time
Eggs dying
4
These are the building blocks of all living things
Made of cells
Maintain homeostasis
Universal genetic code
Life evolves or changes
5
When you test a hypothesis multiple times and the data doesn't support your prediction
Re-think your hypothesis
Run the experiment again until you get the results you want
Conclude that your hypothesis cannot be proven
Change the data to support your prediciton
6
What is the dependent variable on this graph?
Amount of fertilizer
Plant height
Time (2 weeks)
There isn't one
7
Order these steps: A) Recognizing a problem B) Testing a hypothesis; C) Drawing inferences
A B C
B C A
C B A
A C B
8
DNA makes up genes that determine specific characteristics about an organism
Life evolves or changes
Grow and develop
Universal Genetic Code
Made of Cells
9
Sexual and asexual are examples of
Cells
Dances
Reproduction
Universal genetic code
10
The smallest units of life are
tissues
atoms
protons
cells
11
How does reproduction help a species?
it helps them grow
it helps them to avoid extinction
it keeps them company
it gives them energy
12
Which of these is NOT a scientific question a scientist might try to answer?
Why do cacti grow on the south side of the mountain?
When do snakes shed their skin?
Are tigers more beautiful than cheetahs?
Which type of goldfish lives the longest?
13
Which of these is a characteristic of a good hypothesis?
must be able to be tested
must contain an opinion
must be correct
must be able to disagree
14
Experiment to test which soil makes plants grow higher. What would be the control?
Sun
Water
No soil
Lots of soil
15
When the whole population changes over time, what is it doing?
containing cells
growing
reproducing
evolving
16
Which of the following is a quantitative observation?
she is funny
she has blue eyes
she has three fingers
she has soft hair
17
Using the 5 senses to help organisms survive
Life evolves and changes
Ghosts
Respond to environment
Maintain homeostasis
18
Homeostasis is
maintained only by hormones
an unstable internal condition
a stable internal condition
the way organisms store energy
19
Experiment to test which temperature makes eggs hatch. What would be the independent variable?
Time
Eggs dying
Temperature
Eggs Hatching
20
Which of the following is a testable hypothesis?
Humans will someday land on Mars
A plant needs at least 5 hours of sunlight per day to grow
Roses are more beautiful than violets
Ice cream is delicious
21
Ms. Sharp is testing the effect of sunlight on her plants. Which of these is NOT a constant?
amount of water each plant gets
the amount of plant food
the type of soil in each plant
how close the plants are to the window
22
Which of the following answers is a characteristic of all living things?
Warm blooded
has a brain
can respond to the environment
makes food
23
What is the importance of adding a control to an experiment?
To eliminate data
To compare the effect of the independent variable
To add more data
To add complexity
24
Factors that change during an experiment
variables
inferences
observations
controls
25
Interpretations of observations using background knowledge
inferences
observations
laws
variables
26
Name the independent variable in an experiment to see if altitude affects boiling point.
boiling point
altitude
water
container
27
Frogs go from an egg to a tadpole over the course of their life
maintain homeostasis
grow and develop
life evolves or changes
made of cells
28
All organisms, from bacteria to animals, must
be able to use energy
be able to use oxygen
be able to move
be able to clone themselves
29
When species change for the better over long periods of time
Grow and develop
That's how I beat Shaq
Maintain homeostasis
Change and evolve
30
What might cause a theory to change over time?
The discovery of new evidence
New laws passed by the government
New but testable ideas
Changes in public opinion
31
All of this originally comes from the sun and is necessary for organisms to function
Reproduction
Respond to the environment
Obtain and use energy
Universal genetic code
32
The ability to keep your insides the same, despite what is happening outside
Responds to stimuli
Maintain homeostasis
Grows and develops
Changes and evolves
33
What must you do before you make a hypothesis?
Draw conclusions
Form a theory
Run an experiment
Make observations
34
Which of the following is an observation?
The sewer lice were eating garbage
There are 24 desks in the classroom
The beaver was building his home
The apple was rotting because it was warm
35
What is the first step in the scientific method?
perform experiment
analyze data
research and ask questions
hypothesis
36
What is the difference between a hypothesis and a theory?
Theories have been confirmed through tests
Theory means "fact", hypothesis means "guess"
a theory is a guess
hypotheses can't be proven, theories can
