What are lipids, proteins, carbohydrates, nucleic acids.
100
List 3 examples of chemical properties
What is/are Density Boiling Point, Melting point, Freezing point
100
This macro-molecule has a ratio of carbon to hydrogen to oxygen of 1:2:1
What are carbohydrates.
200
Define Independent Variable and Dependent Variable
What is: Independent Variable is what the scientist manipulates or changes (manipulated variable) and the Dependent Variable is what the scientist measures or what responds to the independent variable (responding variable).
200
Give an example of an organism and a population.
What is...answers will vary. sheep and a flock of sheep. Person and a city of people. etc.
200
_________________ This macro-molecule is used for short-term energy storage.
_________________ This macro-molecule is used for long-term energy storage.
What is carbohydrates and lipids.
200
What happens to the molecules in a substance during a chemical change?
What is: they are re-arranged. Bond are broken and new bonds are formed.
200
DNA and RNA are examples of this macro-molecule
What is Nucleic Acid
300
What is a control variable in an experiment?
What is: a variable that does not change in an experiment. Something which is held constant.
300
What body system is responsible for pumping blood through the body?
What is the circulatory system.
300
What are the 3 components which make up Nucleic Acids? (the building blocks)
What are: base, sugar, phosphate group
300
List three examples of a physical change.
What is: Cutting Paper (etc) Changing the Shape, Texture, Volume, State of Matter.
300
What is an example of a "negative feedback mechanism"?
What is thermostat (in a house), body thermo-regulation.
400
A student wanted to investigate the relationship between the number of paperclips added to a paper airplane and how far that paper airplane flew. Write a hypothesis.
What is: The more paper clips you add the further the plane will fly. Or, the more paper clips you add the shorter the distance the paper will fly.
400
What body system is responsible for structural support?
What is the skeletal system
400
If a lipid is a liquid at room temperature, then you know that it is an _________________________ fat.
What is unsaturated.
400
What happens to the molecules in a substance during a physical change?
What is they stay the same, in their same molecular arrangement.
400
Define "Homeostasis"
What is: Maintaining a "set point" within the body. An "internal balance" which is maintained by the body.
500
A student wanted to investigate the relationship between the number of paperclips added to a paper airplane and how far that paper airplane flew. What are the independent and dependent variables in this experiment?
Independent: # of Paperclips added
Dependent: How far the paper airplane travels.
500
Organize the following terms in order from smallest to largest: Human Body, Blood Cell, Heart Muscles (Tissues), Carbon Atom.
What is: Carbon Atom, Blood Cell, Heart Muscles (Tissues), Human Body
500
This macro-molecule makes up cellular membranes (cell membranes)
What are lipids.
500
Identify the following as either a physical or a chemical change: baking a cake, painting a house, cutting your hair.
What is: chemical, physical, physical.
500
If a macro molecule is made up of nucleotides, what kind of macro molecule is it?