Lab Equipment
The lab equipment used to transfer small amounts of liquid
pippette
How many independent variables should an experiment have
one
When leaving a movie theater, a person notices that the sidewalk is now wet. If the person assumes it rained during the movie, the person is making
an Inference
The smallest unit of LIFE?
A cell
The macromolecules that make up the majority of the cell membrane’s structure are
Lipids
A piece of lab equipment used to grow or store bacteria for an experiment
Petri Dish
When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the
Dependent Variable
An educated guess based on previous knowledge of a subject that is can be tested with an experiment. Often written as an if, then statement.
a Hypothesis
The element of life
Carbon
Which category of carbon-based molecules includes sugars and starches?
Carbohydrates
The lab equipment that will provide the most accurate measurement
Graduated Cylinder
In a hypothesis the __________________ variable is what is being tested, while the _________________ variable is the one being measured in response.
Independent Variable,
Dependent Variable
Data that can be collected by the 5 senses
Observations
the smallest components that join together to create elements
atoms
If available, the body will always digest which macromolecule for energy first?
Carbohydrates
The lab equipment that is never used for taking measurements
Test Tube
What must be considered when designing a solution for a problem with technology?
Cost
Time
Materials
A proposed answer to a question using information you already know
A Prediction
Anything that takes up space and has mass
matter
The macromolecules that would most likely be involved in contracting muscles would be
Proteins
Beaker
Graduated Cylinder
Erlenmeyer Flask
The variables that must stay the same in an experiment is often referred to as
Constants or Controls
A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups to test this claim.
Using the information provided predict what the dependent and independent variables will be.
Dependent variable = bacteria growth
independent variable = treatment (soap/sanitizer)
a group of two or more atoms that form the smallest unit of a substance
(there are small and large)
molecule
We obtain all of the macromolecules from the food that we eat except for
Nucleic Acids