What is Science?
The goal of this is to investigate and understand the natural world, to explain events in the natural world, and to use those explanations to make useful predictions.
What is science?
The one thing that changes in an experiment.
What is the independent variable?
What are organisms.
This is a system of measurements whose units are based on certain physical standards and are scaled on multiples of 10.
What is the metric system?
Created by this scientist from 1668, the experiment uses meat, jars, covers, and flies to determine whether or not spontaneous generation
Who is Francesco Redi?
These types of scientists focus on living systems, which range from invisibly small to the size of our entire planet.
What are biologists?
The effect that happens overall because the independent variable was tested.
What is the dependent variable?
The part of Earth that contains all living and non living things.
What is the biosphere?
Devices that produce magnified images of structures hat are too small to see with the unaided eye.
What are microscopes?
This scientist from the mid 1700s tried to refute Redi's findings by stating that spontaneous generation could occur under the correct conditions.
Who is John Needham?
The process of gathering information about events or processes in a careful, orderly way.
What are observations?
How many variables should we have in an experiment?
What is one?
Community and its nonliving surroundings
What is an ecosystem?
When one single original cell reproduces into a group of cells.
What is a cell culture?
What scientist used a long, curved tube connected to a flask in order to prove once and for all that spontaneous generation does not exist?
Who is Pasteur?
A proposed scientific explanation for a set of observations.
What is a hypothesis?
A well tested explanation that unifies a broad range of observations.
Theory
Populations that live together in a defined area.
A device that uses a beam of electrons to produce images.
What is an electron microscope?
A logical interpretation based on prior knowledge or experience.
What is an inference?
The idea that life comes from nonliving matter.
What is spontaneous generation?
Group of organisms of one type that live in the same area.
What is a Population?
When scientists separate different parts of the cell.
What is cell fractionation?