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6th Grade Science

6th Grade Science Final Exam Flash Cards Cells & Body Systems

QuestionAnswer
What is the hierarchical organization in organisms? Cells → Tissues → Organs → Organ Systems → Organism
What is cell theory? All living things are made of cells; cells are the basic unit of life; all cells come from other cells
What is homeostasis? Keeping stable conditions inside the body
What is the function of the nucleus? Controls the cell and contains DNA
What does the cell membrane do? Controls what enters and leaves the cell
What is the job of mitochondria? Produces energy for the cell
What organelle helps plant cells make food? Chloroplasts
What gives plant cells support? The cell wall
Name one difference between plant and animal cells. Plant cells have chloroplasts and cell walls; animal cells do not
What body system controls the body? Nervous system
What body system pumps blood? Circulatory system
What are infectious agents? Germs like bacteria and viruses that cause disease
Who created the Linnaean classification system? Carl Linnaeus
What are the levels of classification? Kingdom, Phylum, Class, Order, Family, Genus, Species
What is a scientific name made of? Genus and species
What causes Earth’s surface to change? Weathering, erosion, deposition, earthquakes, and volcanoes
What are some Florida landforms? Beaches, wetlands, swamps, and barrier islands
What is the difference between weather and climate? Weather is short-term conditions; climate is long-term patterns
What are Earth’s four spheres? Atmosphere, hydrosphere, geosphere, biosphere
What is the water cycle? Evaporation, condensation, precipitation, and collection
Which layer of the atmosphere do we live in? Troposphere
What causes wind? Uneven heating of Earth’s surface
What are the three types of heat transfer? Conduction, convection, radiation
What is kinetic energy? Energy of motion
What is potential energy? Stored energy
What is the law of conservation of energy? Energy cannot be created or destroyed
What is gravity? A force that pulls objects toward Earth
What is the difference between mass and weight? Mass is the amount of matter; weight is gravity pulling on mass
What happens when forces are unbalanced? Motion changes
What does constant speed look like on a graph? A straight line with the same slope
What are particles in solids like? Tightly packed and vibrating in place
What are particles in liquids like? Close together but able to move around
What are particles in gases like? Spread out and moving freely
What are physical properties of matter? Color, shape, mass, volume, density, etc.
Does density change if sample size changes? No
What is density? Mass divided by volume
What are elements? Pure substances made of one type of atom
What is a compound? Two or more elements chemically combined
How is the periodic table organized? By atomic number
What are the three main parts of an atom? Protons, neutrons, electrons
What charge does a proton have? Positive
What charge does an electron have? Negative
What charge does a neutron have? No charge (neutral)
What are acids? Substances with a pH below 7
What are bases? Substances with a pH above 7
What is a mixture? Two or more substances physically combined
What is a solution? A mixture where one substance dissolves in another
What is a pure substance? Matter made of only one type of particle
What should scientists do when analyzing charts and graphs? Look for patterns, draw conclusions, and make predictions
Why is scientific knowledge called durable? It can change with new evidence, but it is based on strong research
Created by: user-2024792
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