| A | B |
| scientist | someone who asks questions about the natural world |
| science | study of the natural world |
| observation | information collected by using the five senses |
| investigation | scientists conduct these to answer questions |
| hypothesis | an idea or explanatoin that can be tested with an investigation |
| communicate | discuss things with someone and share ideas |
| conclusion | an explanation based on evidence usually after an experiment is completed |
| question | this is something you ask |
| inference | a statement that explains an observation-making a guess based on information |
| data | pieces of information you observe, numbers, descriptions, notes, diagrams, photographs, graphs |
| microscope | a tool for looking at objects that cannot be seen with the eye alone |
| pan balance | used to measure mass with units called grams (g) |
| spring scale | used to measure force in units called newtons (N) |
| model | a representation of something that is too big, too small, or has too many parts to investigate directly |
| two-dimensional model | has lenght and width - flat like a square/rectangle |
| three-dimensional model | making a model like the real thing giving it length, width, and height - such as planets |
| computer model | computer program that models an even or object |