Life Science
Changing one variable
Independent variable
A _______ is something in the world to explain, describe or represent it. (physical object, graph, computer program, just a number
Model
What is the study of life called?
LIFE SCIENCE
Name 3 types of Variables
Independent, Dependent, Controlled
A type of burner that produces a singe open gas flame and is used for heating, sterilization and combustion is a
bunsen burner
A thin glass tube closed on the end designed to hold small amounts of chemicals for testing/experiments
test tube
What is communicating data with numbers?
Quantitative
Explain Scientific inquiry
involves using a variety of tools and skills to answer a question or solve a problem.
_____ is the big story that a person uses to make sense of the world.
Worldview
What is an independent variable?
One thing you change. Limited to one in each experiment.
A piece of steel or iron that has the property of attracting certain substances
magnet
Holds multiple test tubes
test tube rack
Data communicated using words and descriptions is
Qualitative
A _____ IS A WAY FOR SCIENTISTS to test the way he thinks something works by examining the effect of one factor at a time.
controlled experiment
Every law, theory and model are based on
Data
What is a dependent variable?
The change that happens because of the independent variable
instruments used from viewing very small objects such as cells
microscope
A tool used to hold a test tube
test tube holder
And idea that scientists use to explain the data they collected is ________.
inference
explain= inference
_______ are generated from the independent variable that the scientist did not directly cause in other variables.
Dependent variables
Students with long hair must have their hair
Back
What is a controlled variable?
Everything you want to remain constant
Also known as a titrations flask, it has a wide base, narrow neck, conical form; makes swirling liquids by hand easier
Erlenmeyer Flask
A glass tube with a rubber bulb at one end and a tine hole on the other end used to measure out liquids in small drops
dropper
What is scientific method?
an idea that scientists use to describe what they observe
describe = scientific method
An instrument used to measure very precise mass is called a _________.
Triple Beam Balance
_____ are cells with no nucleus
Prokaryotic cells
The liquid to water plants is an example of what type of variable?
Independent
This enlarges an image
magnifying glass
A tube or pipe that is wide at the top and narrower at the bottom, used for guiding liquid or powder into a small opening.
Funnel
A glass container with a wide mouth and a flat bottom that scientists use to hold liquids is called a ___.
Beaker
______ are cells with a nucleus.
Eukaryote cells
____ are organisms that make their food using energy from their environment
Autotrophs
The height and health of a plant is an example of this type of variable?
Dependent
A stick that measures 100 cm/ 1000 mm long
Meter stick
A shallow circular clear dish with a flat lid used to grow cells of bacteria, fungi, etc
Petri dish
Organisms that get energy by eating other organisms are called
Heterotrophs
The science of sorting organisms into groups is called
taxonomy
A set of two simple tools used to prepare substances by crushing and grinding them into a fine paste or powder.
Mortar and Pestle
The type of plant, pot size, soil type and sunlight is considered a ___ variable
Controlled
A narrow cylindrical shaped container used to measure the volume of a liquid
graduated cylinder
A small instrument like a pair of pinchers for picking up small objects
tweezers