Properties of Matter
Density and Earth's Structure
Cells
Heredity
Classification
100
Anything that has mass and takes up space.
What is matter?
100
Describe the sorting of particles in a stream.
Bigger particles will be found at the source of the stream and particle size will decrease as the water slows down
100
What is diffusion?
Movement of particles from an area of high concentration to low concentration.
100
Define Heredity.
Heredity is the passing down of traits from parent to offspring
100
Compare living once-living and non-living things.
Living things have characteristics like metabolism, reproduction, growth, response to the environment, etc. Once-living things used to have those characteristics but don't anymore. Non-living things never had any of the characteristics of living things.
200
Atoms are the smallest unit of matter. Two or more atoms combine to form a molecule.
Describe matter in terms of atoms and molecules.
200
Why do tiny particles of gold dust stat at the bottom of the pan when you're panning for gold?
Gold dust settles to the bottom because it is more dinse than the other material in the pan.
200
Differentiate between a plant cell and an animal cell (three main differences).
A plant cell has a cell wall, chloroplasts, and a large central vacuole.
200
Give an example and explain the difference between inherited and acquired traits.
Inherited: passed to offspring from parents Acquired: learned
200
How are organisms classified?
Organisms are classified based on observable properties and structure.
300
List three characteristics of matter.
Mass, State, Reactivity
300
Describe each layer of the earth and list in order from least dense to most dense.
Crust: surface of the earth Mantle: solid Outer Core: molten metal Inner Core: solid metal
300
Order the levels of organization from simple to complex.
Cells work together to form tissues, 2 or more tissues form an organ, organs make up organ systems, and organ systems make up an organism.
300
Compare how sexual and asexual reproduction passes genetic info from parent to offspring.
Sexual reproduction, two parents contribute genes to offspring Asexual reproduction, one parent passes 100% of its genetic info to the offspring
300
List the orders of classification from most general to most specific.
Domain Kingdom Phylum Class Order Family Genus Species
400
Describe the movement of particles in each of the three states of matter.
Solid: particles vibrate in place Liquid: particles can slide past each other Gas: particles spread out as far as possible
400
The density of a brick of steel is 7.7g/cm^3. You melt the brick down and forge it into a mighty sword. What is the density of your sword?
The same. 7.7g/cm^3
400
Give the function of each of the following organelles in a cell: Cell membrane Cell wall Chloroplast Nucleus Mitochondria
Cell membrane: controls what goes in and out of a cell Cell wall: protects and supports plant cell Chloroplast: produces food from sunlight Nucleus: contains DNA Mitochondria: provides energy for the cell in the form of ATP
400
Give an example of an adaptation and how it helps an organism survive in its environment.
Rabbits have long, powerful hind legs to help them escape predators.
400
List the 5 Kingdoms and describe a characteristic of each.
Bacteria: prokaryotic Fungi: decomposers Plantae: chloroplasts protists: unicellular eukaryotes animalia: multi-cellular eukaryotes
500
How do you calculate mass, volume and density?
Mass: electronic scale Volume: LxWxH, water Density: D=M/V
500
Discuss the advantages/disadvantages of maps and globes as models.
a globe is good for showing relationships between continents and showing the correct sizes, but is not great for details and seeing things all at once, which is what a flat map is good for.
500
Give the function of 3 different organ systems in the human body.
Respiratory: provide O2 and removes waster CO2 Muscular: movement and heat production Nervous: sensory input and control of body systems
500
How does natural selection work?
An organism has an adaptive trait that allows it to survive better in its environment. Because it survives, it reproduces and passes the adaptation on to its offspring, so the trait becomes more common in the population.
500
Describe how to use a dichotomous key to identify an organism.
Observe the organism carefully, read each of the options given in the key , then answer yes or no based on the description. If yes, follow the instructions given. If no, move on to the next option.
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