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nature of science
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100

What is the meaning of independent variable?

A independent variable is a factor being altered (also called the test variable), always indicated on the x-axis when graphed.
100
What do  the nucleus control?

Controls the cell; contains the cell’s DNA

100
What is a lithosphere ?
A lithosphere is made up of the crust and the upper part of the mantle.
100
what are the phases of matter?
SOLID, LIQUID, GAS.
200
What is a Dependent Variable? 
A dependent variable is a factor being measured ( also called outcome variable), always indicated on the y-axis when graphed.
200
What is Commensalism? 

one species receives a benefit fromanother species → enhances fitness of one species; noeffect on fitness of the other species .


200
What are the 3 Plate Boundary's ?
Divergent Boundary

Convergent Boundary                                              Transform Boundary

200
what is the meaning of mass?
AMOUNT OF MATTER IN A SUBSTANCE MEASURED IN KILOGRAMS (KG).
300
What is a theory?


A theory is a set of statements or principles devised to explain a group of facts or phenomena.
300
What is Homeostasis?

Homeostasis is the ability of an organism to keep conditions inside its body the same, even though conditions in its external environment change.

300
What are the 3 methods of heat transfer?


Radiation

Convection                                                                Conduction                                                               

300
What is the meaning of velocity?

Velocity is the rate at which an object changes its position. 

400
What is a Law?
A law is a statement that describes in variable relationships among phenomena under a specified set of conditions.
400
What is the circulatary system function?

Moves materials between body systems, including oxygen, nutrients, hormones, and waste products.

400
What is a Erosion?

The process by which soil and rock particles are worn away and moved elsewhere by gravity, or by a moving transport agent like wind, water or ice.

400

what is Positive acceleration values and Negative acceleration values  ?

Positive acceleration values mean that an object is speeding up and Negative acceleration values mean that an object is slowing down. 

500

What is the difference between a law and a theory?

a theory is much more complex and dynamic. A law describes a single action, whereas a theory explains an entire group of related phenomena. 

500
In a plant cell,where does photosynthesis take place?

A-nucleus

B-cell wall

C-chlorolplast

D-vaculoe

Answer-C
500
How are earthquakes created ?

At the boundaries between plates, friction causes them to stick together. When built up energy causes them to break, earthquakes occur.

500
what the five main types of energy?

mechanical, nuclear, chemical, electromagnetic, and thermal.