How Science Works
Scientific Models
Experimentation
Experimentation 2
Challenge
100
Define phenomenon.
Any fact, observation, detection, or measurement. Any natural occurrence.
100
Define scientific model.
Representation of an object or concept that helps you study something in greater detail.
100
What is a dependent variable?
- The outcome of an experiment
- What is being measured or recorded
100
What is an independent variable?
- What is being changed on purpose by the experimenter.
- The affecting variable.
100
What is the smallest unit of matter?
Atom
200
Define fact.
Observations made of the world around us.
200
What does science do? (Two)
- Explains phenomena
- Shares understanding of how the world around us works
200
What is an experimental group?
The group that receives a specific treatment during an experiment.
200
What is the control group?
The group that does not receive a treatment during an experiment.
200
What is the smallest unit of life?
- Cell
300
Define scientific theory.
Best current explanation of an observation.
300
What does engineering do? (Two)
- Analyzes a system
- Use simulations or build models to see how a design is going to perform.
300
What is quantitative data?
Data that uses numbers
300
What is qualitative data?
Data that uses description
300
Name the organization of life starting from atom (At least seven components)
atom, molecules, cell, tissue, organ, organ system, organism
400
Define conclusion.
An explanation supported by multiple facts.
400
The following is what kind of model?
- Conceptual model
400
An experiment is being done to see how many virus strains survive in varying temperatures. What is the independent and dependent variables of this experiment?
- Independent: Varying temperatures
- Dependent: Number of virus strains surviving
400
An experiment is being done where a severe diseases- causing bacteria is treated with different samples of vaccines. What is the independent variable and dependent variable of this experiment?
- Independent: Different samples of vaccines
- Dependent: Survival rate of bacteria
400
What are four distinguishing characteristics that all ANIMALS share?
Consumption, movement, cellular organization, reproduction
500
The three requirements for a strong scientific theory are?
- Supported by evidence
- Withstands scrutiny
- Make accurate predictions
500
Four requirements of a good scientific model are?
- Explanatory power
- Predictive power
- Consistency across contexts
- Consistency with other scientific models
500
Bacteria are grown in a petri dish and two different types of antibiotics are tested on these bacteria. What are three controls that the experimenter should be aware of?
- Temperature
- Food source
- Lighting
- Type of bacteria
- Bacteria colony sizes
500
One plant is given regular tap water and another plant is given water mixed with vinegar. The growth rate of both plants are measured over a specific period of time. What are three controls the experimenter should be aware of?
- Sunlight
- Plant type
- Soil composition
- Temperature
500
Name five characteristics of living things.
Cellular organization.
Reproduction.
Metabolism.
Homeostasis.
Heredity.
Response to stimuli.
Growth and development.
Adaptation through evolution.