MID-TERM SCI CH 1
Terms
undefined, object
copy deck
- safety symbols
- learning the meaning and obeying these can help prevent injury or an accident.
- volcanologist
- a person who studies volcanoes
- science
- The knowledge gained by observing the natural world in order to discover facts and formulate laws or principles that can be verified.
- chemicals on skin
- rinse area with running water for 15 min. is a treatment for ____________.
- helps scientists share data
- an advantage of using SI.
- stopwatch
- used to measure time
- accurate record keeping
- essential to maintaining an investigator's credibility with other scientists and society.
- meterstick
- used to measure length
- prediction
- a statement of cause and effect that can be used to set up a test for a hypothesis.
- thermometer
- used to measure temperature
- hypothesis
- a possible explanation or answer to a question - or - an idea or explanation that is based on prior scientific research or observations and that can be tested.
- mass
- the measure of the amount of matter in an object.
- scientific methods
- a series of steps followed to solve problems used by scientists.
- density
- the ration of the mass of a substance to the volume of the substance - or the amount of matter in a given volume.
- kelvin
- the official SI unit for temperature
- mechanics
- a person who works on everything from cars to the space shuttle to find answers to questions about why a machine is not working.
- temperature
- the measure of how hot (or cold) something is.
- factor
- anything that can influence the experiment's outcome.
- tool
- anything that helps you do a task.
- variable
- a factor that changes in an experiment in order to test a hypothesis.
- foot
- Which unit is not an SI unit - meter, foot, liter, kilogram?
- small cuts
- clean area, cover with a clean cloth or gauze pad, and apply preasure is a treatment for _____________.
- spring cable
- used to measure force
- International System of Units, or SI
- The French Academy of Sciences began to form a global measurement system now know as __________.
- zoologist
- a person who studies the lives of animals.
- animal safety
- don't squeeze or frighten, follow teacher's directions on how to handle and how to dispose of waste.
- graduated cylinder
- used to measure volume
- oceanographer
- a person who studies the ocean.
- density equation
- density=mass/volume
- making observations
- the first step in an investigation
- chips and cracks
- after washing glassware, check for _____________.
- balance
- used to measure mass
- first aid
- emergency medical care for someone who has been hurt or who is sick.
- area
- a measure of the size of the surface of an object.
- chemical in eye
- rinse eye with running water or in an eyewash for 15 min, then see a doctor is a treatment for ______________.
- safety
- the state of being free of danger or injury.
- volume
- a measure of the size of a body or region in three dimensional space
- controlled experiment
- tests only one factor at a time by using a comparison of a control group with one or more experimental groups.
- geochemist
- a person who specializes in the chemistry of rocks, minerals, and soil.
- replicate
- to repeat
- meter
- the basic SI unit for length
- minor heat-related burn
- hold affected area under cold, running water for at least 15 min. is a treatment for _________________.