WorksheetsHHS Introduction to Biology
Total questions: 30
Worksheet time: 20mins
In a scientific investigation, how many variables should be changed?
None
One
As many as possible
What is biology?
The study of matter and change
The study of forces and motion
The study of life
The study of human interactions with the environment
What is the basic unit of structure and function of living things?
atom
molecule
cell
organ system
Which process gives rise to offspring?
growth and development
metabolism
reproduction
homeostasis
All living things try to maintain a stable internal environment known as
stimulus
response
feedback loop
homeostasis
What is the sum of all the chemical reactions in a cell called?
development
metabolism
reproduction
homeostasis
Which theory states that cells are the basic structural units of all organisms?
germ theory
cell theory
theory of evolution
gene theory
What is a broad explanation for events that is widely accepted as true?
observation
law
hypothesis
theory
Reproduction is the process by which living organisms:
Give birth to others of the same kind
Increase in size irreversibly
Give rise to other organisms of the same kind
Give rise to other living organisms not necessarily of the same kind
A testable idea or explanation that leads to scientific investigation
Observation
Data
Hypothesis
Theory
Organized procedure to study something under controlled conditions. Investigations which are often done in a laboratory
Science
Theory
Hypothesis
Experiment
Systematic study of the natural events and conditions and it is the logical, structured way of thinking about the world
Graph
Data
Theory
Science
The information you collect while doing your experiment is called
conclusions
data
hypotheses
procedures
What is a constant/control in an experiment?
Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.
It's the variables that the scientist changes in the experiment
It's the variables that are being measured in an experiment
A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?
the amount of carbon dioxide in each container
the number of plants in each container
the amount of water provided to the plants
the height of each plant after a period of time
What is an observation?
A scientific statement based on ideas
Using your senses to notice what is going on around you
To be unaware of your surroundings
The question that you want an answer to.
The “Normal” group in an experiment. You can COMPARE your results to this one (nothing happened to it).
Example: If you are testing the effect of the amount of water on plant growth, this group of plants receives the recommended amount of water.
Constant
Variable
Control Group
Experimental Group
This variable in an experiment is the one being deliberately changed by the scientist.
dependent variable
independent variable
data
control group
The summary at the end of an experiment that explains the results.
conclusion
hypothesis
procedure
question
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
time of day exercise occurs
amount of exercise
heart rate
type of exercise
In order to be accepted, a scientific theory must be
based on the results of a single experiment
widely tested and supported by extensive data
in line with all previous historical ideas
controversial and cause debate
How do scientists prove their claim?
With a story
With evidence
With an experiment
With an essay
Which type of data involves descriptions that cannot be counted or measured?
qualitative
quantitative
What is the independent variable on this graph?
Number of push ups
Days
