Scientific Method
What format do you use when writing a hypothesis?
If _________, then _________.
The universal genetic code that stores complex information needed to live, grow, development, and reproduce is called _________.
DNA
True or False:
The scientific method is a rigid set of steps that must be followed in an exact order.
False
Determine the correct characteristic of life for the following statement:
A person who is exercising becomes hot and starts to sweat.
Maintain homeostasis and response to stimuli
Name 2 lab safety rules.
Answers will vary.
Identify the dependent variable:
If I put my plants under blue light, then they will grow taller.
Plant height/growth
Define evolution.
Change over an extended period of time.
Tina used three different types of bug repellent on three different sections of her leg. She then recorded the number of insect bites on her legs in each section.
experiment
Determine the correct characteristic of life for the following statement:
A plant takes in sunlight through photosynthesis to create sugar.
Obtain/use matter & energy.
What is the smallest unit of life?
cells
Identify the independent variable:
If I do my homework every night, then I will get a good grade in science class.
Completing homework
Define unicellular and multicellular and give one example of each.
Unicellular: composed of one cell; bacteria, archaea, protists, fungi
Multicellular: composed of many cells; humans, plants, animals
Scott said "If acid rain affects the plants in lakes, then it may affect smalls like crayfish in the same area."
hypothesis
Determine the correct characteristic of life for the following statement:
All living things contain DNA.
Has a genetic code (DNA)
Define homeostasis.
The ability of an organism to maintain it's internal environment even when the external environment is changing.
What is a control group and why it is important?
Control: Group that does not receive the independent variable.
It is important to have a control so that you can compare the control set-up to the experimental set-up so you can see how the changed variable affected the outcome.
What might a human's respond be if they encounter bright sunlight?
squint, put on sunglasses, turn away, etc.
Bob read about growing plants in water. He wanted to know how plants could grow without soil.
Problem/Question
Determine the correct characteristic of life for the following statement:
A spider lays eggs.
Reproduction.
How many minutes must you flush your eyes with water if you get chemicals in them?
At least 15 minutes or until the nurse arrives.
List 6 steps in the scientific method. Then explain if the steps must be followed in order or if they can be completed in any order.
Observe/problem, hypothesize, perform an experiment, record and analyze data, state a conclusion, communicate the results .
Can be completed in any order.
Name the 6 of the characteristics of life.
Made up of cells
Based on a universal genetic code (DNA)
Obtain and use materials and energy
Grow and develop
Reproduce
Respond to their environment
Maintain a stable environment
Change overtime (evolve)
Angelina's experiment proved that earthworms move away from light.
What part of the SM is this?
conclusion
Determine the correct characteristic of life for the following statement:
A dogs runs under the couch when it starts to thunder.
Responds to stimuli
When using chemicals or fire in the lab, what are two very important safety rules to remember?
No loose clothing, no lanyards, tie back long hair, no horse play, and remember where the fire extinguisher and fire blanket are.