Nature of Science
Scientists collaborate to add to or change theories. What is an example of this happening over hundreds of years, beginning with the invention of the compound microscope?
Cell theory.
What are the 5 spheres of Earth we discussed this year?
hydrosphere, cryoshpere, atmosphere, biosphere, and geosphere
This formed over thousands of years as the Colorado River eroded the land.
The Grand Canyon
This law states that energy cannot be created or destroyed, it only changes forms.
Newton's Law of Conservation of Energy.
What is your mnemonic device for remembering taxonomic levels, and what does it stand for?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
These are the best explanations we have, supported by facts and evidence, but can never be absolutely proven.
What are theories?
This heat transfer works without direct contact, like the sun's rays.
Radiation
This landform is created when an underwater volcano erupts until it breaks the surface of the ocean.
An island.
Sand, carpet, and rust all increase this resistive force, while oil, water, and smoother surfaces reduce it.
Friction
What are the levels of organization from cell through organism?
cell, tissue, organ, organ system, organism
This is when a scientist does the exact same experiment in the exact same way.
Replication
This heat transfer works with direct contact, like touching a hot pan.
conduction
Caverns and rust result from what?
chemical weathering
Mass and distance are the 2 major factors that affect this force.
Gravity.
Name the 3 parts of cell theory.
All living things are made of cells.
The cell is the smallest unit of life.
Cells come from preexisting cells.
This helps scientists discover evidence to support or change theories.
New technology, like compound microscopes, telescopes, and computers.
This heat transfer is what powers Earth's air and water currents.
convection
Canyons, channels, and valleys are created by this.
Erosion
If an object is in motion, this type of force is present.
Unbalanced forces
Name 4 organ systems and give an example of an organ found in each system.
respiratory : lungs
digestive : intestines, stomach, esophagus
nervous : brain, nerves, sense organs
circulatory : veins, arteries, capillaries, heart
reproductive : ovary, teste
This explains how gravity works on an object.
The Theory of Gravity.
This might make a coastal area have warmer or cooler weather.
warmer or cooler ocean currents
Larger particle size and faster water flow affect erosion in this way.
They increase the effect of erosion.
If an item is traveling 300 miles over a 6 hour period, what is its speed?
50 miles per hour
Name the parts of a plant cell that animal cells lack or have different AND tell why plants need that part and animals don't.
Plants need chloroplasts for glucose production through photosynthesis.
Plants need cell walls to support their structure, like a skeleton.
Plants have large central vacuoles because they cannot seek out food or water when it is lacking, so they need the storage.