1
anything that has mass and takes up space
matter
people who study things that can be observed, measured, tested
scientists
a scientists main job
make observations
base unit of length in the metric system
meter
a controlled test to see what happens in a certain situation
experiment
a method developed over the centuries that is a way of approaching problems
the scientific method
observations that are based on the five senses
qualitative observations
base unit of liquid volume in the metric system
liter
the study of material around you and how it reacts with other material
chemistry
in the scientific method, this is an educated guess that is made before testing
hypothesis
observations that measure and collect numerical data
quantitative observations
base unit of mass in the metric system
gram
Different kinds of matter act differently even under the same conditions because they have different __________.
properties
the last step of the scientific method
draw a conclusion
the main problem of qualitative observations
True or false: It is easier to make conversions between units in the Old English system then in the metric system.
false
True or false: You need to understand chemistry to understand how plants and animals grow.
True
changing only one thing at a time in an experiment is called
controlling variables
name two tools that can be used to make quantitative observations
graduated cylinder, meter stick, thermometer, etc.
Is a millimeter larger or smaller then a meter?
smaller