The scientific method always begins with doing this.
What is making observations?
100
Various factors that can change throughout the course of an experiment are called?
What are variables?
100
These are the smallest units of life.
What are cells?
100
Organs that work together to perform a common function are referred to as a(n)?
What is an organ system?
100
The ability of organisms to maintain a stable internal environment is referred to as maintaining __________.
What is homeostasis?
200
This is often defined as an "If...then..." statement or as an "educated guess."
What is a hypothesis?
200
2.3 m, 500.6 g, 23 students are all examples of what type of data?
What is quantitative data?
200
The molecule that codes for traits in all living organisms.
What is DNA (deoxyribonucleic acid)?
200
A herd of elephants is an example of what organizational level?
What is a population?
200
When the bell rings you get out of your chair and go to your next class. The bell ringing is an example of a(n)?
What is a stimulus?
300
This is collected throughout the course of a scientific experiment.
What is data?
300
Why is it important to control variables in an experiment?
What is if several variables were changed in an experiment, you could not easily tell which variable(s) is/were responsible for any observed results?
300
Buffers in the blood keep blood pH from rising or falling too much. Name the characteristic of life demonstrated by this example.
What is "All living organisms maintain homeostasis?"
300
A group of cells similar in structure and function work to perform a common function. This is known as a?
What is a tissue?
300
Over millions of years, some birds (like penguins) have adapted to use their wings for swimming instead of flight. This is an example of which property of life?
What is "All living organisms adapt through evolution?"
400
If the results of a scientific experiment do not support the hypothesis, but reject it instead what might be done next?
What are retesting, restating the hypothesis, researching, designing a new experiment, etc.?
400
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solution. A fourth plant receives pure water. After a two-week period the height of each plant is measured. Identify the control and experimental groups in this experiment.
What is the control group is the sunflower receiving pure water while the experimental groups are the sunflowers receiving salt solutions of varying concentrations?
400
Chemical reactions occurring in the body may break down or build up materials. What term do we associate with this?
What is metabolism?
400
This level of organization is the first organizational level that includes living and nonliving factors.
What is an ecosystem?
400
Will wants to know if the amount of time spent on social media will have an effect on energy levels. Formulate a hypothesis and describe a controlled experiment he could design to test this hypothesis.
What is answers will vary?
500
List the steps of the scientific method in order.
What are making observations, asking questions, forming a hypothesis, testing the hypothesis, analyzing data, and drawing a conclusion?
500
Marissa wants to test the effects of pesticides on the size of apples in an orchard. Identify the independent and dependent variables in this experiment.
What is the independent variable is the type/amount of pesticide sprayed on each tree while the dependent variable is the size of the apples?
500
Provide one similarity and one difference between sexual and asexual reproduction.
What is they are both types of reproduction that produce new living organisms; differences could include the number of parents involved in each (sexual - 2, asexual - 1), genetic diversity (sexual - produces genetically diverse offspring, asexual - produces offspring identical to the parent), time involved with each (sexual - takes longer, asexual - more organisms in a short period of time)?
500
Starting with the cell and ending with the biosphere, name the organizational levels from smallest to largest.
What are cell, tissue, organ, organ system, organism, population, community, ecosystem, and biosphere?
500
List five (5) of the eight (8) characteristics of life.