Scientific Inquiry
Physical Science
Changes in Systems
Life Science
Random
100
True or False? A scientific question involves personal opinion
False
100
Work = force x ?
distance
100
Trophic levels are levels in the ______
Food chain
100
Give an example of a physical adaptation
camel hump, claws, spines, large leaves, coloration etc.
100
An element is composed of only one type of _______. A compound is made up of more than one type of ________.
An element is composed of only one type of atom. A compound is made up of more than one type of atom.
200
What is a hypothesis?
A prediction about the world
200
Name all the forms of energy we talked about this term.
Light, sound, electrical, mechanical, chemical, thermal, nuclear
200
Give an example of a producer in a food web
plant, flower etc.
200
Fill in the blank: cell, tissue, _______, organ system, organism
organ
200
What would you use to measure the mass of an object?
A balance
300
The ________ variable is what's measured in an experiment.
Dependent
300
"Heat transfer by mass motion of molecules in a fluid" Describes which method of heat transfer?
Convection
300
After a forest fire ______ succession occurs, in order to regrow the ecosystem.
secondary
300
Which body system does this describe: "Allows for gas exchange between the body and the environment"?
Respiratory system
300
density = mass/?
volume
400
In a controlled experiment, how many variables are changing?
Only 1 variable is changed
400
Stored energy is called:
Potential energy
400
What are the 4 major components of a system?
Input, process, output, feedback
400
What is the basic unit of inheritance? (A section of DNA coding for a trait)
Genes
400
If an individual is heterozygous for a gene, which phenotype will it express, the dominant phenotype or recessive phenotype? Why?
The dominant phenotype, because a heterozygous individual has both a dominant an recessive allele, but the dominant allele will express the phenotype.
500
Is burning a piece of paper a chemical or physical change? Why?
A chemical change, a chemical reaction in occurring (combustion).
500
How does a simple machine like a lever decrease the amount of force needed to do a task?
By increasing the distance over which force is applied
500
If wolves eat rabbits, what will happen to a wolf population in an area if more rabbits are introduced.
The wolf population will increase in size
500
What is the difference between a genotype and a phenotype? Which one can you see?
Genotype describes the alleles an individual has, while phenotype describes the physical characteristics you can see.
500
Name two types of forces that can act on an object.
friction, gravity, balanced, unbalanced
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