Top 100 Science
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| Accuracy | the ability to make a measurement that is as close to the actual value as possible.
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| Classify | to put similar things into a group.
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| Control Group | a standard against which change is measured.
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| Design Process | a set of steps for developing products and processes that solve problems.
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| Evidence | observations that make you believe something is true.
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| Experiment | the use of the scientific method to test a hypothesis
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| Hypothesis | a statement of what you think will happen during an investigation.
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| Inference | a conclusion based on observations.
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| Observation | something you find out about objects, events, or living things using your senses.
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| Precision | the ability to consistently repeat a measurement.
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| Procedures | step-by-step instructions for completing a task.
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| Prototype | a version of a solution to a problem.
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| Technology | the knowledge, processes, and products that solve problems and make work easier.
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| Variable | something that can change in a test.
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| Orbits | major planets revolve around the sun in nearly circular fashion.
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| These 3 orbit the sun | comets, asteroids, and meteoroids
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| Moons | orbit the planets along with debris.
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| The largest star in the sky | the Sun appears to be the largest, because it is the closest to the Earth
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| Other stars | some stars are larger and some stars are smaller than the sun
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| The only star in our solar system | the Sun
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| What size star is the Sun? | it is a medium sized star.
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| How long is the Earth's revolution around the sun? | 365 days
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| One rotation on the Earth's axis takes how long? | 24 hours and produces day and night
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| What effect does the Earth's rotation have on the sun, stars, and moon? | They appear to change position in the sky.
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| The Earth's axis is tilted... | 23.5 degrees
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| What effect does the tilted axis and Earth's revolution have on the Earth | it affects the amount of direct sunlight the Earth receives in a single day and throughout the year.
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| The average daily Temperature is related to... | the amount of direct sunlight received.
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| Seasons | the changes in average temperature throughout the year.
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| Telescope | a tool that can be used to magnify the appearance of objects in the solar system.
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| Universe | a collection of many starts of different sizes.
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| Asteroids | metallic, rocky bodies that orbit the sun but are smaller than planets.
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| Meteor | appears when a particle or chunk of a meteoroid enters Earth's atmosphere from outer space.
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| Axis | an imaginary line around which an objects spins.
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| Comets | frozen masses of ice and dust that orbit the sun.
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| Constellation | a group of stars that forms a pattern.
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| Dwarf Planet | a large, round object that revolves around the sun but has not cleared the region around it orbit.
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| Moon | a natural object that revolves around a planet.
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| Orbit | the path an object takes as it revolves around a star, planet, or moon.
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| Planet | a large, round object that revolves around a star and has cleared the region around its orbit.
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| Revolution | one full orbit around the sun.
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| Rotation | one whole spin of an object on its axis.
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| Space Probe | a spacecraft that gathers data without a crew.
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| Populations are organized by... | how they acquire energy
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| For Ecosystems, the major source of energy is | Sunlight
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| Photosynthesis | the process where producers transform energy from the sun and make food.
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| Consumers | Animals that get their energy from eating plants and other animals that eat plants.
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| Community | the group of all populations in an area.
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| Competition | the struggle among organisms for the same limited resources.
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| Conservation | is an attempt to preserve or protect an environment from harmful changes.
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| Decomposer | an organism that gets its energy by breaking down wastes and dead organisms.
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| Ecosystem | all the living and non-living things in an area and their interactions.
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| Environment | all of the conditions surrounding an organism.
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| Food Chain | a diagram that combines many food chains into one picture.
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| Food Web | a diagram that combines many food chains into one picture.
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| Habitat | a place that provides all the things an organism needs to live.
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| Pollution | any substance that damages the environment.
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| Population | a group of organisms of one species that live in an area at the same time.
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| Predator | a consumer that hunts and eats another animal.
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| Prey | any animal that is hunted by others for food.
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| Producer | an organism that makes its own food for energy.
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| Consumer | an organism that cannot make its own food.
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| Species | a group of similar organisms that can mate and produce offspring that can also produce offspring.
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| Plants and some microorganisms are | Producers
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| Bacteria and fungi are the main | Decomposers and return nutrients to the ecosystem.
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| Food Web represents... | an intertwining of food chins within the same community.
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| Symbiotic relationship | when individuals of one species depend upon individuals of another species for survival.
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| Mutualism | a relationship where both species benefit.
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| Commensalism | a relationship where one species benefits and the other is unaffected.
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| Parasitism | a relationship where one species benefits and the other is harmed.
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| Energy flows... | through an ecosystem in one direction, from producers, to consumers, to decomposers.
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| Movement | is measured by speed (how fast or slow the movement is)
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| Speed | is measured by time and distance traveled.
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| Earth pulls down on all objects with... | gravitational force.
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| Weight | is a measure of the gravitational force between an object and the Earth.
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| Prism | bends white light and separates the different colors of light.
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| Reflected colors... | are the only colors visible when looking at an object because the other colors are absorbed by the object.
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| Light travels... | in a straight line until it interacts with another object or material.
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| Sound must travel... | through a material (medium) to move from one place to another.
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| Sound travels at... | different speeds through different objects (media).
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| Light travels... | faster than sound.
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| Visible light (white light) | a mixture of the rainbow colors (red, orange, yellow, green, blue, indigo, violet).
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| The angle that light approaches a reflective surface... | affects the direction in which the light is reflected.
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| Objects that move slowly produce... | low pitches
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| Objects that move quickly produce... | high pitches
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| Refraction | involves bending of light when passing into a new medium
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| Acceleration | the rate at which the speed or direction of motion of an object changes over time.
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| Contact force | requires two pieces matter to touch.
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| Energy | the ability to do work or cause change.
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| Force | a push or pull that acts on an object.
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| Friction | the force that results when two materials rub against each other or when their contact prevents sliding.
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| Gravity | the force of attraction between any two objects.
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| Inertia | the tendency of an object to resist any change in motion.
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| Kinetic energy | energy due to motion.
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| Non-contact force | acts at a distance.
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| Opaque | describes materials that do not let any light pass through them.
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| Potential energy | not causing any changes now, but could cause changes in the future.
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| Reflection | light bouncing off an object.
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| Refraction | the bending of light.
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| Translucent | describes materials that let some light pass through, but not all.
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| Transparent | describes materials that let nearly all light pass through them.
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| Vibration | the back and forth motion of an object.
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