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WorksheetsUNIT 1 HONORS BIO TEST
Total questions: 23
Worksheet time: 5hrs 16mins
What is science?
a subject taught at school by the lovely Ms. Carrol.
a procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
A particular way of knowing about the world based on observation and experimentation.
What is the correct format for a hypothesis?
When.... because..
If.. then..
Since... therefore
Independent variable... dependent variable
What is the relationship between an independent and dependent variable?
the independent variable changes in response to the dependent variable.
the dependent variable changes in response to the independent variable.
they do not affect each other
What is the difference between an observation and an inference?
An observation is something you notice about an object using your 5 senses while an inference is a guess based on what you observe.
An observation is a guess that follows the if..then format while an inference is merely a guess.
An inference is something you notice about an object using your 5 senses while an observation is a guess based on what you observe.
What is the difference between accuracy and precision?
When something is accuarate it is correct. When something is precise it is close to correct but not quite there.
When something is accurate it is close to the correct/accepted/ideal value. When your measurement is precise it is close to its surrounding measurements (how close they are to each other).
When something is precise it is close to the correct/accepted/ideal value. When your measurement is accurate it is close to its surrounding measurements (how close they are to each other).
When something is accurate it involves numbers and can be put into a chart/graph, precise information can't be placed in a graph.
What is a fact?
It is an idea that can't be proven.
It is a false statement.
A fact can differ from person to person and isn't the same for everyone.
A fact is an objective/something you can verify it's true.
What is a hypothesis?
A prediction based on observations you make.
A summary of the experiment you conducted.
A one-sentence statement about why you are conducting a certain experiment.
A random guess based on nothing valid.
What is the difference between a theory, principle, and law?
A principle is a statement that is based on observation from repeated experiments, while a theory explains what is going on in the world around us. A law is based on principles and is very broad.
A law is a statement from your hypothesis and a theory is basically a hypothesis but in a different format. A principle is the head of a school.
A law is a statement that is based on observations while a principle explains what is going on in the world around us. A theory is based on principles and is very broad.
What are the steps of the scientific method in order?
question, experiment, conclusion, research, hypothesis, analyze data
question, research, hypothesis, experiment, analyze data, conclusion
hypothesis, question, research, analyze data, experiment, conclusion
analyze data, question, research, experiment, conclusion
Chadi purchased 5 red shirts that are exactly the same. He also purchased 5 different brands of laundry detergent. He wants to know if the brand of laundry detergent will affect how quickly the color of the shirt will fade. He is washing each shirt 15 times using the same washer and dryer. He is also making sure to measure the same amount of detergent for each wash.
Independent Variable: the shirt
Dependent Variable: Chadi's mood
Independent Variable: the number of shirts
Dependent Variable: the color of the sky
Independent Variable: the brand of laundry detergent
Dependent Variable: how quickly the color of the shirt fades
Independent Variable: how quickly the color of the shirt fades
Dependent Variable: the washer Chadi used
What 3 components is an atom made out of?
molecules, particules, and elements
protons, neutrons, and electrons
proteins, lipids, and nucleic acids
What are the 6 elements necessary for life?
carbon, nitrogen, phosphorus, hydrogen, oxygen, and sulfur
mercury, gold, platinum, iodine, chlorine, and boron
magnesium, calcium, silicon, aluminum, barium, and iron
arsenic, gallium, zinc, copper, cobalt, and manganese
What are the charges of protons, neutrons, and electrons and where are they located?
protons (-) are not in the nucleus, neutrons (0) are also not located in the nucleus, electrons (+) are located in a cloud outside of the nucleus
protons (+) are located in the nucleus, neutrons (0) are also located in the nucleus, electrons (-) are located in a cloud outside of the nucleus
protons (0), neutrons (-), and electrons (+) are all located on their own clouds outside of the nucleus.
all three- protons (-), neutrons (+), and electrons (0) are located inside of the nucleus
What is the difference between a period and a group?
Periods are the vertical columns on a periodic table and tell the number of energy levels. Groups are the horizontal rows on a periodic table and tell the number of valence electrons.
Periods are the horizontal rows on a periodic table and tell the number of energy levels. Groups are the vertical columns on a periodic table and tell the number of valence electrons.
What are the three main types of bonds?
covalent, ionic, hydrogen
hydrogen, helium, and hydroxide
bionic, elemental, periodic
What are the levels of organization that make up an organism?
subatomic particles, atom, element, molecule, macromolecules, cell tissue, organ, organ system, organism
molecules, molecular particles, elemental perioods, microscopic figures, tiny crumbs, a piece of grass
What is the difference between polar and nonpolar molecules?
Polar molecules come from the North Pole and nonpolar molecules come the South Pole.
Polar molecules can't dissolve in water and are considered neither positive or negatively charged. Nonpolar molecules are the opposite.
Polar molecules have unequal distribution of charges (it’s either positive or negative) and it can dissolve in water. Nonpolar molecules have no separation of charge, so no positive/negative poles are formed & they can't dissolve in water.
What are the 5 properties that make water a unique molecule?
light reflector, hydrating, 70% of the earth's surface, 60% of the human body, absorbtion
cohesion, adhesion, high specific heat, low density as a solid, solvent
moistness, taste, transparency, smoothness, freezable
What is the difference between hydrophillic and hydrophobic substances?
A hydrophobic substance is scared of the word moist.
A hydrophilic substance dissolves in water and has an affinity for water. A hydrophobic substance does not dissolve in water and does not have an affinity for water.
A hydrophobic substance can dissolve in water while a hydrophillic substance does not have this ability.
A hydrophilic substance is filled with hydration.
What are the types of macromolecules?
oils, meats, and dna
proteins, lipids, nucleic acids, and carbohydrates
fatty substances, whole foods, and dna strands
What does your body consume first?
nucleic acids
carbohydrates
lipids
proteins
Explain the major functions of each macromolecule.
carbs- short term energy
lipids- long term storage
proteins- form bones
nucleic acids- store and transmit hereditary or genetic information.
carbs- make you larger in size
lipids: no energy- makes you sleepy
proteins- helps you with physical activity
nucleic acids- no function
Pasta is an example of which kind of macromolecule?
lipids
carbohydrates
protein
nucleic acids
