5th Grade Science Facts
The Nature of Science and Engineering
- Science is a way of knowing about the natural world, is done by individuals and groups, and is characterized by empirical criteria, logical argument and skeptical view.
- Scientific inquiry requires identification of assumptions, use of critical and logical thinking, and consideration of alternative explanations.
- Men and women throughout the history of all cultures, including MN American Indian tribes and communities, have been involved in engineering design and scientific inquiry.
- Tools and mathematics help scientists and engineers see more, measure more accurately, and do things that they could not otherwise accomplish. (spring scale, metric measurement, tables, mean/median/range, spreadsheets, and appropriate graphs)
Physical Science
- An object’s motion is affected by forces and can be described by the object’s speed and the direction it is moving.
- Friction slows down a moving skateboard.
- A greater force on an object can produce a greater change in motion.
- Simple machines demonstrate how they change the input and output of forces and motion.
Earth and Space Science
- The surface of the Earth changes. Some changes are due to slow processes and some changes are due to rapid processes.
- Over time, rocks weather and combine with organic matter to form soil.
- Slow processes, such as water erosion and rapid processes, such as landslides and volcanic eruptions, form features of the the Earth’s surface.
- In order to maintain and improve their existence, humans interact with and influence Earth systems.
- Water, iron ore, granite, sand and gravel, wind and forests are all renewable and nonrenewable energy and material resources found in MN.
Life Science
- Living things are diverse with many different characteristics that enable them to grow, reproduce and survive.
- Plants and animals adapt to their environment. Without various adaptations, they would not be able to survive.
- Natural systems have many parts that interact to maintain the living system.
- Humans change environments in ways that can be either beneficial or harmful to themselves and other organisms.
- Recreation, pollution, and wildlife management are examples of helpful and harmful human interaction with natural systems.
Academic Vocabulary
- Explain=to make plain or understandable
- Describe=to tell or write about; to give a detailed account of
- Variable=any factor that can change in a controlled experiment, observation, or model
- Control=any factor that stays the same in an experiment
- Contrast=to compare in order to show differences
- Classify=to arrange or organize according to a category
- Determine=to settle or decide upon
- Inference=process of drawing a conclusion by reasoning from something known
- Hypothesis=an educated guess or explanation
- Observation=the act of noticing, perceiving, or seeing
- Structure=the arrangement of all of the parts of a whole
- Function=the normal or characteristic action of anything; role; job
- Prediction=prophecy; a guess of the expected results
- Identify=to find out or to establish the identity of
- Conduct=to do; to perform
- Conditions=an existing state; the factors involved in a situation
- Process=a series of actions by which something develops or is brought about
- Response=answer or reply
- Compare=to examine (2 or more objects, ideas, people, etc.) in order to note similarities and differences
- Analyze=to examine carefully and in detail so as to identify causes, key factors, possible results, etc.
- Organism=living thing: group of systems working together to fulfill a common purpose
- Advantage=something that is favorable to success, a benefit, gain, or profit; a plus or positive
- Disadvantage=something that is unfavorable to success, not a benefit, gain, or profit; not a plus; a negative
- Conclusion=the final result, decision or outcome
- Data=a set of facts, information, statistics or observations
Science Vocabulary
- Adaptation=a characteristic that enables a living thing to survive in its environment
- Amphibian=a vertebrate that lives part of its life in water and part of its life on land
- Atmosphere=the blanket of gases that surrounds Earth
- Bench mark=a plaque left by surveyors to tell the exact location and elevation of a place
- Bird=a vertebrate that has both feathers and wings
- Biome=one of Earth’s large ecosystems, with its own kind of climate, soil, plants, and animals
- Camouflage=an adaptation in which an animal protects itself against predators by blending in with the environment
- Carnivore=an animal that eats another animal
- Chemical change=a change in matter that occurs when atoms link together in a new way, creating a new substance different from the original substances
- Classification=the science of finding patterns among living things
- Compression=a movement of plates that presses together or squeezes Earth’s crust
- Consumer=any animal that eats plants or eats other plant-eating animals
- Contour plowing=preventing erosion by plowing across rather than up and down a slope
- Coquina=a sedimentary rock formed from seashell fragments
- Crop rotation=growing different crops each year so that the soil does not use up the same kinds of minerals year after year
- Crossbreeding=producing offspring by mating individuals from two distinct breeds or varieties of the same species
- Crust=the rocky surface that makes up the top of the lithosphere and includes the continents and the ocean floor
- Deciduous=said of a plant that loses its leaves each fall
- Deciduous forest=a forest biome with many kinds of trees that lose their leaves each autumn
- Decomposer=any of the fungi or bacteria that break down dead plants and animals into useful things like minerals and rich soil
- Delta=fan-shaped region formed by deposits of sediments found at the mouth of a river
- Deposition=the dropping off of bits of eroded rock
- Desert=a sandy or rocky biome, with little precipitation and little plant life
- Diversity=a wide variety of traits in individuals from the same population
- Ecosystem=all of the living and nonliving things in an environment, including their interactions with each other
- Elevation=the height of a place above sea level
- Erosion=the picking up and carrying away of pieces of rocks
- Fault-a crack in the Earth’s crust whose sides show evidence of motion
- Fault-block mountains=a mountain formed by blocks of Earth’s crust moving along a fault
- Fish=a vertebrate that lives its whole life in water
- Flood plain=land that is likely to be underwater during a flood
- Fold mountain=a mountain made up mostly of rock layers folded by being squeezed together
- Food chain=the path of energy in food from one organism to another
- Food web=the overlapping food chains in an ecosystem
- Force=a push or pull exerted by one object on another, causing a change in motion
- Fossil=any remains or imprint of living things of the past
- Fulcrum=the pivot point of a lever
- Geologist=a scientist who studies rocks to tell how they formed and to predict when an earthquake may occur
- Grassland=a biome where grasses, not trees, are the main plant life
- Herbivore=an animal that eats plants, algae, and other producers
- Heredity=the passing down of inherited traits from parents to offspring
- Humus=decayed plant or animal material in soil
- Hybrid=an organism produced by the crossing of parents that have different forms of the same trait
- Hydrosphere=Earth’s water
- Igneous rocks=a rock formed when melted rock material cools and hardens
- Inherited trait=a characteristic that is passed from parents to offspring
- Invertebrate= an animal that does not have a backbone
- Lava=magma that reaches Earth’s surface
- Lever=a simple machine made of a rigid bar and a fixed pivot point, called the fulcrum
- Lithosphere=the hard outer layer of Earth
- Magma=hot, molten rock deep below Earth’s surface
- Mammal=a vertebrate that feeds its young milk
- Meander=bends or s-shaped curves in a river
- Metamorphic rock=a rock formed under heat and pressure from another kind of rock
- Meteorite=a chunk of rock from space that strikes a surface of Earth or the Moon
- Mimicry=an adaptation in which an animal is protected against predators by its resemblance to another, unpleasant animal
- Omnivore=an animal that eats both plants and animals
- Permafrost=a layer of permanently frozen soil found in arctic and Antarctic regions
- Physical change=a change of matter in size, shape, or state without any change in identity
- Plate=One of the moving pieces of Earth’s crust that has been broken by upward pressure in the mantle
- Plate tectonics=a scientific theory that Earth’s crust is made of moving plates
- Predator=an animal that hunts other animals for food
- Prey=a living thing that is hunted for food
- Producer=any of the plants and algae that produce oxygen and food that animals need
- Protective coloration=a type of camouflage in which the color of an animal blends in with its background, protecting it against predators
- Reptile=an egg-laying vertebrate with thick, dry skin
- Rock=a naturally formed solid in the crust made up of one or more minerals
- Rock cycle=rocks changing from one into another in a never-ending series of processes
- Runoff-precipitation that flows across the land’s surface or falls into rivers and streams
- Savanna=a tropical grassland with some trees and shrubs
- Scavenger=a meat-eating animal that feeds on the remains of dead animals
- Sediment=pieces of material carried and deposited by water or wind
- Sedimentary rock=a rock made of bits of matter joined together
- Shear=a movement of plates that twists, tears, or pushes one part of Earth’s crust past another
100.Simple machine=a machine with few moving parts, making it easier to do work
101. Strip farming=trapping runoff by alternating tightly growing grasses with more widely spaced plants
102.Surveyor=a specialist who makes accurate measurements of Earth’s crust
103.Taiga=a cool forest biome of conifers in the upper Northern Hemisphere
104.Temperate=free from extremes of temperature
105.Tension=a movement of plates that stretches or pulls apart Earth’s crust
106.Topsoil=the dark, top layer of soil, rich in humus and minerals, in which many tiny organisms live and most plants grow
107.Tropical rain forest=a hot biome near the equator, with much rainfall and a wide variety of life
108.Troposphere=the layer of the atmosphere closest to Earth’s surface
109.Tundra=Large, treeless plain in the arctic regions, where the ground is frozen all year
110.Variable=One of the changes in a situation that may affect the outcome of an experiment
111.Vertebrate=an animal that has a backbone
112.Watershed=area from which water is drained, region that contributes water to a river or river system
113.Weathering=breaking down rocks into smaller pieces