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WorksheetsMidterm Review
Total questions: 60
Worksheet time: 30mins
True or False: The steps of the scientific method are listed correctly below...
1.Initial observation
2.Question
3.Hypothesis
4.Experiment/procedure/do and collect data
5.Analyze data
6.Draw conclusions
7.Publish/communicate work
True
False
The ____________ variable is what the experimenter changes in an experiment.
Dependent
Independent
Constant
__________ variable is the outcome of the experiment, or what we are trying to _______________
Independent, measure
Constant, change
Dependent, measure
Dependent, change
Controlling variable factors and ___________________ the experiment make the results reliable, valid, and accurate
measuring
repeating
formulating
experimenting
How are theories different from Laws?
Theories and laws are the same in regards to scientific investigations in the field of biology, geology, and astronomy.
Theories come from pseudoscience, laws are real science
theories have NOT been tested and proven NOT to be true in certain situations and environments whereas laws have been repeatedly proven to be true on ALL situations and environments
Theories have been tested and proven true in certain situations and environments whereas Laws have been repeatedly proven to be true on ALL situations and environments
Identify the variables from the graph above.
Independent variable is the Temperature
Independent variable is the Density
Identify the variables from the graph above.
Dependent variable is Temperature
Dependent variable is Density
THEORY
Theories can be ______________________ (or changed) if new evidence is found. Theories are the best explanations scientists have currently.
kept the same
replicated
revised
resultations
Identify each scenario as either Repetition or Replication
Mary baked chocolate chip cookies that wound up looking like muffins. She asked Jane to use the same directions and see if her cookies also look like muffins.
Replication because Jane copies Mary
Repetition because Jane copies Mary
Identify each scenario as either Repetition or Replication
Billy is testing golf balls. He drops three different brands of balls from 40 cm and measures how high they bounce. He drops each ball 10 times.
Repetition because Bill repeats himself over and over again
Replication because Bill repeats himself over and over again
Is this Qualitative or Quantitative Data?
The cup had a mass of 454 grams
Quantitative
Qualitative
Is this Qualitative or Quantitative Data?
The temperature outside is 25° C.
Quantitative
Qualitative
Is this Qualitative or Quantitative Data?
It is warm outside.
Quantitative
Qualitative
Is this Qualitative or Quantitative Data?
The building has 25 stories.
Quantitative
Qualitative
Is this Qualitative or Quantitative Data?
The building is taller than the tree
Quantitative
Qualitative
Is this Qualitative or Quantitative Data?
The sidewalk is 100 meters long
Quantitative
Qualitative
True or False: Remember the QuaNtitative observations are measurements that include numbers.
True
False
True or False: Qualitative observations have adjectives that describe using words like small, squishy, stretchy...
True
False
Is this an OBSERVATION, INFERENCE, or PREDICTION?
The mineral on the table is transparent and smooth.
OBSERVATION
INFERENCE
PREDICTION
Is this an OBSERVATION, INFERENCE, or PREDICTION?
If I touch the hot pot-handle I will burn my hand.
OBSERVATION
INFERENCE
PREDICTION
Is this an OBSERVATION, INFERENCE, or PREDICTION?
The stream is not polluted.
OBSERVATION
INFERENCE
PREDICTION
Is this an OBSERVATION, INFERENCE, or PREDICTION?
It must have rained because there are many puddles.
OBSERVATION
INFERENCE
PREDICTION
Is this an OBSERVATION, INFERENCE, or PREDICTION?
The stream velocity (speed) is 20 mph.
OBSERVATION
INFERENCE
PREDICTION
What is a scientific model?
ANYTHING THAT MAKES ACCURATE PREDICTIONS ABOUT WEATHER AND EARTHQUAKES
ANYTHING USED TO REPRESENT THE REAL THING TO MAKE PREDICTIONS
ANYTHING THAT SCIENTISTS USE IN A LABORATORY
When would you use a model instead of the real thing?
WHEN THE REAL THING IS TOO BIG
WHEN THE REAL THING IS TOO SMALL
WHEN THE REAL THING IS TOO DANGEROUS
WHEN THE REAL THING IS TOO FAR AWAY
WHEN THE REAL THING DOES NOT EXIST ANYMORE
Identify this cell above.
Plant Cell
Animal Cell
Bacteria
Identify this cell above.
Plant Cell
Animal Cell
Bacteria
Identify this cell above.
Plant Cell
Animal Cell
Bacteria
The smallest unit of all LIVING things is called a ____________.
Cell
Atom
Organism
Organ System
Tiny structures found inside the cell are called ____________.
marcomolecules
microcules
organelles
organstemelles
Compare and Contrast Plant and Animal cells below as well as prokaryotes and eukaryotes...
Plant Cells have:
Cell Wall
Chloroplast
Chlorophyll
No Lysosomes
Are Square Shape
Compare and Contrast Plant and Animal cells below as well as prokaryotes and eukaryotes...
Animal Cells:
No Cell Wall
No Chloroplast
No Chlorophyll
Have Lysosomes
Are circular shape
Compare and Contrast Plant and Animal cells below as well as prokaryotes and eukaryotes...
Both Plant & Animal Cells Have:
Cytoplasm
A Nucleus
Cell Membrane
Mitochondria
Vacuole
Observe the table. It compares and contrasts Prokaryotic & Eukaryotic Cells. Is it Accurate?
Yes, it is accurate
No, the table is not accurate
Give an example of each
Prokaryote: ___________________
Eukaryote:_____________________
Prokaryote: Animal Cell
Eukaryote: Plant Cell
Prokaryote: Bacteria
Eukaryote: Animal Cell or Plant Cell
Prokaryote: Plant Cell
Eukaryote: Animal Cell
Identify the Organelle by the Functions listed clue below:
takes up food and converts it to energy (ATP) for the cell
Cell Membrane
Nucleus
Mitochondria
Cell Wall
Identify the Organelle by the Functions listed clue below:
creates new proteins in the cell
Ribosomes
Nucleus
Mitochondria
Cell Wall
Identify the Organelle by the Functions listed clue below:
acts like a “gatekeeper” in both prokaryotes and eukaryotes
Cell Membrane
Nucleus
Mitochondria
Cell Wall
Identify the Organelle by the Functions listed clue below:
involved in digestion and waste removal in the cell. Found only in animal cells.
Cell Membrane
Nucleus
Mitochondria
Lysosome
Identify the Organelle by the Functions listed clue below:
directs all cell activity, holds the chromosomes & DNA
Cell Membrane
Nucleus
Mitochondria
Lysosome
Identify the Organelle by the Functions listed clue below:
carries out photosynthesis in a plant cell
Cell Membrane
Nucleus
Chloroplast
Vacuole
Identify the Organelle by the Functions listed clue below:
Gives extra support and protection to plant cells only
Cell Membrane
Cell Wall
Chloroplast
Vacuole
Identify the Organelle by the Functions listed clue below:
stores water, nutrients and waste; plants cell has one large, animal cells have several small ones
Cell Membrane
Cell Wall
Chloroplast
Vacuole
Identify this organelle
cell membrane
cell wall
mitochondria
vacuole
Identify this organelle
cell membrane
chloroplast
mitochondria
vacuole
Describe what happens during photosynthesis by filling in the blanks with the correct words for each sentence.
_______________________________ is trapped by the chlorophyll (the green pigment in plants)
thermal energy
sunlight energy
hydroelectric energy
radiation
Describe what happens during photosynthesis by filling in the blanks with the correct words for each sentence.
____________________________ enters the plant through the stomata on the leaves, ________________________enters through the roots
oxygen, carbon dioxide
oxygen, glucose
water, glucose
carbon dioxide, water
Describe what happens during photosynthesis by filling in the blanks with the correct words for each sentence.
the ____________________________(ingredients) go into the __________________, where a reaction takes place _________________ (food for plants) and the waste product ____________________ that exits through the stomata
three reactants, chloroplast, producing glucose, oxygen
oxygen, glucose
three reactants, cell wall, producing glucose, oxygen
carbon dioxide, water
This is an equation for which process?
carbon dioxide + water + sunlight -> glucose + oxygen
cellular respiration
photosynthesis
water cycle
carbon cycle
This is an equation for which process?
C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP
(Glucose + Oxygen --> Carbon Dioxide + Water + ATP Energy)
cellular respiration
photosynthesis
water cycle
carbon cycle
The table below compares and contrasts cellular respiration and photosynthesis. Is it correct or not?
Yes, it is correct.
No, it is not correct.
CELL THEORY
True or False:
Robert Hooke was the first person to observe cells through a microscope. He was looking at tree bark.
True
False
Select ALL parts of Cell theory
All living things are made up of one or more cells
Cells are the basic unit of all living things
All cells come from existing cells
Cells can make up non living things like rocks or dirt
A group of scientists discover an object they have never before seen. How might the scientists use the cell theory to determine if the object is an organism?
They could examine it using a microscope to see if it is made up of one or more cells
They could taste it to see if it was edible and safe for the human digestive system
They could set it on fire and see if combustion takes place
They could perform a chemical titration to observe a chemical reaction.
Levels of Organization
What is the correct level of organization from smallest level to largest level?
Levels of Organization
Cells -> tissue -> organ -> organ system -> organism
Levels of Organization
Cells -> atoms -> organ -> organ system -> organism
Levels of Organization
Organism -> tissue -> organ -> organ system -> Cells
If you made a longer list from smallest to biggest, would it look like this?
Organism->population-> community->ecosystem->biome->biosphere->galaxy->universe
Yes
No
Homeostasis is...
The maintenance of a constant internal environment
The maintenance of an INCONSTANT internal environment
Which letter is NOT in homeostasis?
A
B
C
D
E
What happens if homeostasis is NOT maintained?
The organisms will adapt and live a short life
The organism might become sick or die
Is this table accurately describing homeostasis?
Yes
No
