Measurement and observation Flashcards
Metric system
A system of measuring based on the number 10. Also called the international system of units.
Example examples are meter, liter, kilogram, degrees Celsius
Length
The distance between two points.
SI unit: meter (m)
Equipment: ruler
Volume
The amount of space and object takes up
SI unit: liter (L)
Equipment : graduated cylinder
Volume of a cube use L x W x H
Volume of an irregular object used displacement method
Meniscus
Curve on the surface of liquid
Always read the bottom of the meniscus
Displacement method
Used to measure the volume of a irregular object, example rock or marble
Final volume minus
starting volume =
Mass
The amount of matter in an object
SI unit: kilogram (kg)
Equipment: triple beam balance
Weight
Mass under force of gravity
Temperature
Measure of amount of heat
SI unit: Celsius (C)
Equipment: thermometer
Density
How tight packed an object is
Density equals mass divided by volume
Observation
Information gathered using the sense smell, taste, here, Touch
Fact*
Inference
A attempt to explain an observation
Opinion *
Quantitative observation
A description of an observation, using numbers and measures
Example : the beaker contains five ML of water
Qualitative observation
A description of an observation, using the senses that involves no numbers
Example: the purple book, the beaker contains water
Prediction
I guess about what will happen in the future
