Biology Unit 1 vocab

Beaker

Holds and mixes liquids; gives rough measurements.

Funnel

Helps transfer liquids.

Graduated Cylinder

Measures liquids precisely.

Test Tube

Holds small amounts of substances.

Petri Dish

Holds samples or organisms.

Erlenmeyer Flask

Holds and mixes liquids.

Accuracy

How close a measurement is to the true value.

Precision

How close measurements are to each other.

Qualitative

Describes something using words.

Quantitative

Uses numbers or measurements.

Observation

Information you get by seeing, hearing, smelling, or measuring.

Inference

A conclusion based on observations.

Scientific Investigation

Used to learn how something works.

Hypothesis

A testable prediction.

Independent Variable (IV)

What the scientist changes.

Dependent Variable (DV)

What the scientist measures.

Constants

Things kept the same.

Control Group

The normal group used for comparison.

Technological Design

Used to solve a problem or create/improve something. (Cost Time Materials)

Atom

The smallest part of an element.

Hydrophobic

Water fearing

Hydrophilic

water loving

Adhesion

Water sticks to other surfaces.

Cohesion

Water molecules stick to each other.

Macromolecule

A large molecule needed by living things.

Carbohydrate

Provides energy; includes sugars and starches.

Lipid

Stores energy; includes fats.

Protein

Helps build and move parts of the body.

Nucleic Acid

Stores genetic information.

Monomer

One small building block of a molecule.

Polymer

Many monomers joined together.