SPS Grade 7 Honors Science Final Review 2015 Page 1 of 10
Studying People Scientifically
Controlgroup, Constantvariable, Independent Variable,
Dependent Variable, Qualitative, Quantitative, Sample
o List 4-5 components ofa good experimental design.
Large Sample Size
Well written Procedure
s (IV/DV/ Control)
o What is the difference between qualitative vs. quantitative data?
Provide some examples.
Qualitative Data – descriptive; uses words
Quantitative Data- number data
Qualitative Data- Tall, Green, Healthy, Bumpy
Quantitative data- 50 ml., 5 inches tall, 38ºF
o Using “Feel the Beat” and “Dig In”; identify the independent,
dependent and constant variables (be able to identify variables
when reading other experiments as well).
IV – the factor you are studying; in feel the beat it is the change
you made to affect the heart rate…push-ups/eating candy etc.
DV- the data you are collecting; in Feel the Beat it was the heart
Constant variables- the factors you keep the same during each
Trial… like the number of reps, location of experiment etc.
SPS Grade 7 Honors Science Final Review 2015 Page 2 of 10
Heart, Lungs, Mouth, Esophagus, Large Intestine, Small
Intestine, Pulse Rate, Alveoli
o List the organs of the respiratory system and explain gas
Nose/Mouth -> Trachea -> Bronchial Tubes
-> Alveoli (grape like clusters in your lungs)
- Oxygen and Carbon dioxide are exchanged in the alveoli
which are surrounded by capillaries. CO2 out/ O2 in!
o What is the order of the organs in the digestive system through
which food passes?
o Explain whether mechanical or chemical breakdownis
occurring in each organ of the digestive system.
Mouth – Mechanical and Chemical
Esophagus – Neither
Stomach- Mechanical and Chemical
Small Intestine – Chemical
Large Intestine – Slight chemical
SPS Grade 7 Honors Science Final Review 2015 Page 3 of 10
o Describe the structure and function of the respiratory and
circulatory systems and their relationship to each other.
The respiratory system brings air carrying
oxygen into the lungs where it reaches the alveoli.
In the alveoli oxygen from the air enters the blood
stream through capillaries and carbon dioxide from
the blood is dropped off in the lungs to be exhal ed.
This is how the respiratory and circulatory system
o Describe how the pulse changes during exercise and explain
why this change is taking place.
Your pulse (heart rate) increases in order
to bring more oxygen to your muscles during
Cell Biology & Disease
Nucleus, Cytoplasm, Chloroplast, Mitochondria, Cell
Membrane, Cell Wall, Magnification, Vacuole,
o Given various ocular and objective lens magnifications,
calculate the total magnification of using each objective lens.
Forexample, Calculate the total magnification for a 15X ocular
and 40X objective
(15x) x (40x) = 600x
eyepiece times the objective = total magnification
o Explain the function of the four most commonorganelles.
- Nucleus- controls all of the activities of the cell;
contains the genetic material (DNA)
- Cell Membrane- controls what enters and leaves the cell
- Mitochondria – powerhouse of the cell
- Cytoplasm – jelly like substance that organelles float in
SPS Grade 7 Honors Science Final Review 2015 Page 4 of 10
o Compareand contrastbacteria vs. animal cell organelles.
- Bacteria- No nucleus, cell wall, single celled organism
- Animal Cell- Nucleus, no cell wall,
- Both have cell membranes, cytoplasm, mitochondria
o Compare and contrastsingle vs. multi-celled organisms and
provide examples of each.
- Multi cellular organisms are larger, have specialized cells and
- Single celled organisms are microscopic and live short lives
Genes, Genotype, Phenotype, Generation, Probability,
o Calculate the probability of future offspring using a Punnett
Square. Forexample, Gg X gg
Genotype: (Gene combinations.)
50% Gg (heterozygous) and 50% gg (recessive)
Phenotype: (What it looks like.)
50% Dominant trait G and 50% recessive trait g
SPS Grade 7 Honors Science Final Review 2015 Page 5 of 10
o Be able to distinguish genotypes that result in the dominant
phenotype from genotypes which; result in the recessive
o Describe the important facts about asexual reproduction.
Results in offspring that are identical to
the parent (clones) , there is one parent
o Describe the important facts about sexual reproduction.
Results in offspring that are unique, there
are two parents,
o What is the importance of genes and where are they located?
Genes are located on the chromosomes
which are found in the nucleus of every
animal and plant cell.
Genes determine the traits of an organism.
o Describe what is occurring in meiosis and describethe cells
which are produced.
Meiosis produces gamete cells (Sperm and
Egg cells) that
chromosomesas normal body cells.
In humans, sperm and egg cells contain 23 chromosomes. Body cells
contain 46 chromosomes.
SPS Grade 7 Honors Science Final Review 2015 Page 6 of 10
o Describe what is occurring in mitosis and describethe cells
which are produced.
Mitosis produces body cells that contain the
normal number of chromosomes. (46 in
All cells that are not gametes (sperm or egg cells) are
produced by mitosis.
Erosion & Deposition
Weathering, Erosion, Deposition
o Describe how weathering, erosion and depositioncreate and
Weatheri ng : h ice, heat breaking
down rocks into smaller particles.
• Erosion: The movement of particles (weathered material) by wind or
• Deposition: The re-location of accumulation of particles to a new
place….where it is deposited.
(Mouth of a river, Delta or Marsh)
Dig-In/Studying Soils Scientifically
Absorbency, Percolation Rate
o How particle size affects percolation rate.
The larger the particle size, the bigger the
spaces between them. This results in faster percolation.
Smaller particle sizes have slower percolation.
(Sand Silt Clay )
o Describe absorbencyand how it affects the soil
hasincreased absorbency that water will not
move through it well. This is because it is absorbing the
This could prevent the plant roots from getting water. A
clay like soil would have this problem.
SPS Grade 7 Honors Science Final Review 2015 Page 7 of 10
Ring of Fire, Convergent plate boundary, Divergent plate
boundary, Transform plate boundary
o Differentiate between the three plate boundaries, their
movement and what can occurat each boundary.
Divergent boundary – is when two plates move apart. Examples: The
Great Rift Valley and Mid-Atlantic Ridge
Transform boundary – is when two plates slide past each other. This
area marked by cracking of the crust; many shallow earthquakes.
Example: San Andreas Fault.
Convergent boundary - Two pieces of crust collide. There are
three types of Convergent boundaries.
o Describe similarities and differences between Continental Drift
and Plate Tectonics.
Plate Tectonics - The Earth’s crust and upper mantle
are broken into sections. These sections are called plates.
They move together (convergent), apart (divergent) and past
each other (transform).
• Continental Drift - The thought that the continents used to
be together (Pangaea) and they moved apart.
It really wasn’t that the continents were moving apart but
that the plates were moving (Converging, Diverging and
Transforming) , which then moved the continents!