Measurements
This is the system of measurement we use in science
SI System - International System of Units (metric system)
What is the SI unit of time?
Seconds
Name a piece of equipment used to measure time
Stopwatch, clock, timer
How many significant figures?
21
2
Name a reason to study science?
Help you become a more informed citizen
Understand the best use of our resources
Help understand the world around you
When determining the volume of a liquid, it is important to:
Be eye level and read the meniscus
What is the base unit of length?
Name a piece of equipment used to measure length
Metric ruler, meter stick
How many significant figures?
2031
4
Define Space/Earth Science
Why is important to use the metric system in science?
Keep measurements consistent
What is the base unit of mass?
Grams
Name a piece of equipment used to measure temperature
Thermometer
_________ is an approximation of a number based on reasonable assumptions
Estimation
Define Life Science
Study of living things, including plants, animals, and microscopic life forms. Also include the study of the human body
What is the difference between mass and weight?
Mass: The measure of the amount of matter an object contains
Weight: is a measure of the force of gravity acting on an object
What is the base unit of volume?
Liters
Name a piece of equipment used to measure mass
Triple Beam Balance
_______ is how close a measurement is to the true or accepted value
Accuracy
Define Physical Science
Study of energy, motion, sound, light, electricity, magnetism, and the chemistry of our surroundings
How do you calculate density?
mass/volume
What two units of measurement do we use to measure temperature in science?
Celsius and Kelvin
Name a piece of equipment used to measure liquid volume
Graduated cylinder/beaker
______ is how close a group of measurements are to each other
Precision
Name an element of science in a non science related career.
Chef - living organisms are the key to baking breads and cakes
Artist - sculptors must know about the properties of the materials they use
Sound Technician -must understand how sound waves travel and how they interact with different materials
Firefighter - understanding chemistry helps firefighters put out fire and clean up hazardous spills quickly and safely