Show:
Science is Everywhere
The Science Toolbox
Introducing Earth
Heat
Density and Buoyancy
100
Think about your favorite food. Say an observation and an opinion on it.
ex: pizza observation: it has cheese opinion: it tastes good
100
The basic SI unit for length is the ...
meter
100
A dead part of an animal or plant that has been preserved for a long time is called...
a fossil
100
The energy of motion is called...
kinetic energy
100
Mass divided by Volume =
Density
200
What is the last step in the scientific method?
draw conclusions
200
The Metric System is a base ______ system
ten
200
One tree ring is how long?
one year
200
Boiling water moving in a circle inside a pot is an example of which method of heat transfer?
convection
200
Matter that can flow is called...
a fluid
300
Who can be scientists
anyone
300
the amount of matter an object has is the...
mass
300
The scientific name for "tree-ring dating" is...
dendrochronology
300
How much energy is lost as heat from a light bulb?
98%
300
When an object is _________ dense than the fluid it is in, the object will sink.
more
400
A good hypothesis needs to be
testable
400
the variable in an experiment that doesn't change is...
the control variable
400
What kind of organisms lived in the precambrian era?
single-celled organisms
400
Mr. Lo warming up Taylor Swift's hands by holding them is an example of which method of heat transfer?
conduction
400
A 35,700 cm^3 Mr. Lo will displace how much water when he sinks into a pool?
35,700 cm^3
500
Name 5 fields of science
physics, chemistry, biology, astronomy, earth science, ecology
500
The variable that is changed in an experiment is...
the independent variable
500
What is a similarity between a topographic map and a bathymetric map?
they both use contour lines
500
How is radiation different from convection and conduction?
Radiation transfers heat through empty space, while convection and conduction need atoms (gas,liquid,solid) to transfer heat
500
If I increase the volume of an object without changing the mass, what will happen to the density?
The density will decrease