Scientific Method
Earth Science
Forces & Motion
Simple Machines
Bridges & Ecology
100
The variable you can control & change in an experiment.
What is independent variable.
100
What is the correct order of the layers of the earth starting from the inside?
inner core, outer core, mantle, crust
100
How is speed calculated?
What is distance / time.
100
What is the difference between Potential & kinetic energy?
P. E. = energy at rest K. E. = energy in motion
100
What is the difference between producers, consumers, & decomposers?
Producers: produce their own food consumers: eat other things for food Decomposers: eat the nonliving food & break it down.
200
The variable you measure in your experiment.
What is dependent variable
200
What theory explains the continents are continously moving ?
What is theory of continental drift
200
In what direction does friction act, compared to object's motion?
What is the opposite direction.
200
If a machine has a lot of friction, then its efficiency ...?
decreases
200
Plants carry this out to create sugar from carbon dioxide, water, & sunlight?
What is photosynthesis.
300
Which type of graph shows data with numbers on the x axis and numbers on the y axis. Shows changes as time goes by.
What is line graph.
300
What causes the earth's lithospheric plates to move?
What is convection currents.
300
What forces are acting on a skydiver in free fall?
What is air resisitance & gravity
300
What type of simple machines is a lid fastening tight on a jar?
What is a screw
300
What is the difference between abiotic & biotic factors?
Abitoic: Non living Biotic: living
400
How do you properly format a hypothesis?
What is an If..Then statement.
400
What is the difference between mechanical & chemical weathering?
mechanical: physical breaking or changing due to freezing & thawing of a rock. Chemical: the chemical composition of a rock changing from orginial to another; turning brown to a reddish color.
400
Describe the acceleration of a child going in circles on a Merry Go Round?
accelerating because always changing direction.
400
What simple machine would you use to pull a rock out of the ground?
What is a lever.
400
Which bridge is the strongest & most expensive bridge?
What is suspension bridge
500
What is the difference between a controlled variable and constants?
Controlled variable: Varbiable that remains constant when referring & measuring back to the independent variable. Constants: variables that remain the same throughout the whole experiment.
500
What is the difference between convergent, divergent, & transform boundaries? What occurs at each?
convergent: subduction, one plate pushing together and one plate going under another. divergent: two plates pulling away from each other. : mid ocean ridge transform boundary: two plates sliding past eachother: earthquakes.
500
Indicate & describe Newton's three laws:
Newton's 1st Law: When an object is in motion, it stays in motion, when an object is @ rest, it stays @ rests unless acted upon by outside force. Newton's 2nd Law: F=ma Newton's 3rd Law: equal & opposite reaction.
500
what are the six simple machines?
What is screw, wheel & axel, wedge, pulley, inclined plane, & lever
500
What forces act on the top of the bridge & on the bottom of the bridge when the force is being pushed straight down?
What is compression on top, tension on bottom.
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