WorksheetsInfectious Diseases and Scientific Method
Total questions: 16
Worksheet time: 16mins
Select the variable that a scientist is testing in a scientific experiment (also called the manipulated variable)
Controlled Variable
Dependent Variable
Independent Variable
Select the variable that the scientist is measuring as data in an experiment (also called the responding variable).
Controlled Variable
Dependent Variable
Independent Variable
A scientist is investigated which type of food grew the most bacteria when left out. The scientist left out chicken, crackers, and carrots for four hours, took a sample, and then counted how many bacteria grew on a petri dish. What is the dependent variable in this experiment?
Amount of Time
Amount of Bacteria
Type of Food
Type of Bacteria
A scientist is investigated which type of food grew the most bacteria when left out. The scientist left out chicken, crackers, and carrots for four hours, took a sample, and then counted how many bacteria grew on a petri dish. What is the independent variable in this experiment?
Amount of Time
Amount of Bacteria
Type of Food
Type of Bacteria
A scientist is investigated which type of food grew the most bacteria when left out. The scientist left out chicken, crackers, and carrots for four hours, took a sample, and then counted how many bacteria grew on a petri dish. What is a controlled variable in this experiment?
Amount of Time
Amount of Bacteria
Type of Food
Type of Bacteria
When a scientists does multiple trials of the same experiment, this is called (a) .
When a scientist completes(copies) the work of another scientist or if a scientist does their own experiment again, it is called (a) .
In the bacteria growing on food experiment, what could the scientist do to make sure that the data that they collected was accurate.
Repeat with more Trials
Have another Scientist Replicate the experiment
Replicate the Experiment Themselves
The experiment is already accurate and doesn't need to be changed
What is the difference an infectious and a noninfectious disease?
An infectious disease is worse than a noninfectious disease
A noninfectious disease is worse than an infectious disease
An infectious disease is caused by a pathogen (a disease causing organism) and a noninfectious disease is environmental or genetic
A noninfectious disease disease is caused by a pathogen (a disease causing organism) and an infectious disease is environmental or genetic
A scientist is trying to trace the source of an infectious disease. In which location(s) should they look?
Contaminated Food
In a person's genes
Contaminated Water
In a person's environment
Another infected person
An organism is something that has all characteristics of living things: Made of Cells, Has Genetic Material, Responds to its environment, Reproduces on its Own, uses energy, grows and develops, and maintains homeostasis. Which of the following infectious agents have these characteristics?
Bacteria
Fungi
Parasites
Viruses
What is occurring in the picture?
A bacteria is producing toxins to make a cell sick
A parasite has infected a cell and is making copies of itself
A virus is using a host cell to replicate (reproduce) to infect other cells
White blood cells are attacking a virus
Mark all that apply to Viruses:
Very, very small
Small
Living
Non-Living
Can Reproduce on Its own
Mark all that apply to Bacteria:
Very, very small
Small
Living
Non-Living
Can Reproduce on Its own
Select all that apply to the term pathogen:
A disease causing agent
cancer, diabetes, and asthma are examples
Bacteria, Fungi, Parasites, and Viruses are examples
Can't be transmitted from one person to another
Can be transmitted from one person to another
Select all that apply to parasites:
A disease causing organism that lives on or in its host organism
Can be caught from disease from the environment or from contaminated food or water.
Can be carried by an organism such as a mosquito.
Ticks and Tape Worms are examples.
