Experimental Design
This is a testable explanation or prediction.
What is a hypothesis?
This type of data uses numbers and measurements.
What is quantitative data?
This property means that water molecules have slightly positive and negative areas.
What is polarity?
This macromolecule is an important source of quick energy for cells.
What are carbohydrates?
This tool is used to measure the mass of an object.
What is a balance?
This is the variable a scientist purposely changes.
What is the independent variable?
This type of data describes observations using words.
What is qualitative data?
This is the attraction between water molecules.
What is cohesion?
This macromolecule is important for long-term energy storage and cell membranes.
What are lipids?
This tool is used to measure the volume of a liquid.
What is a graduated cylinder?
This is the variable a scientist measures during an experiment.
What is the dependent variable?
This variable belongs on the x-axis of a graph.
What is the independent variable?
This is the attraction between water and another surface.
What is adhesion?
This macromolecule helps build structures and carries out many functions in cells.
What are proteins?
This tool is used to measure temperature.
What is a thermometer?
These are variables that are kept the same throughout an experiment.
What are constants?
This type of graph is best for showing how something changes over time.
What is a line graph?
This property allows water to dissolve many different substances.
What is being a good solvent?
This macromolecule stores and carries genetic information.
What are nucleic acids?
This is one characteristic shared by all living things.
What is being made of cells?
This should be identified before forming a hypothesis or collecting data.
What is the question or problem?
These should be included on a well-designed graph to clearly communicate the data.
What are a title, labeled axes, and units?
Because solid water is less dense than liquid water, this happens to ice and helps protect aquatic life.
What is ice floats and forms an insulating layer?
These are the smaller units that can join together to form polymers.
What are monomers?
This term describes the chemical reactions that allow an organism to obtain and use energy and materials.
What is metabolism?