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Top 100 Science

TermDefinition
Accuracy the ability to make a measurement that is as close to the actual value as possible.
Classify to put similar things into a group.
Control Group a standard against which change is measured.
Design Process a set of steps for developing products and processes that solve problems.
Evidence observations that make you believe something is true.
Experiment the use of the scientific method to test a hypothesis
Hypothesis a statement of what you think will happen during an investigation.
Inference a conclusion based on observations.
Observation something you find out about objects, events, or living things using your senses.
Precision the ability to consistently repeat a measurement.
Procedures step-by-step instructions for completing a task.
Prototype a version of a solution to a problem.
Technology the knowledge, processes, and products that solve problems and make work easier.
Variable something that can change in a test.
Orbits major planets revolve around the sun in nearly circular fashion.
These 3 orbit the sun comets, asteroids, and meteoroids
Moons orbit the planets along with debris.
The largest star in the sky the Sun appears to be the largest, because it is the closest to the Earth
Other stars some stars are larger and some stars are smaller than the sun
The only star in our solar system the Sun
What size star is the Sun? it is a medium sized star.
How long is the Earth's revolution around the sun? 365 days
One rotation on the Earth's axis takes how long? 24 hours and produces day and night
What effect does the Earth's rotation have on the sun, stars, and moon? They appear to change position in the sky.
The Earth's axis is tilted... 23.5 degrees
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.
The average daily Temperature is related to... the amount of direct sunlight received.
Seasons the changes in average temperature throughout the year.
Telescope a tool that can be used to magnify the appearance of objects in the solar system.
Universe a collection of many starts of different sizes.
Asteroids metallic, rocky bodies that orbit the sun but are smaller than planets.
Meteor appears when a particle or chunk of a meteoroid enters Earth's atmosphere from outer space.
Axis an imaginary line around which an objects spins.
Comets frozen masses of ice and dust that orbit the sun.
Constellation a group of stars that forms a pattern.
Dwarf Planet a large, round object that revolves around the sun but has not cleared the region around it orbit.
Moon a natural object that revolves around a planet.
Orbit the path an object takes as it revolves around a star, planet, or moon.
Planet a large, round object that revolves around a star and has cleared the region around its orbit.
Revolution one full orbit around the sun.
Rotation one whole spin of an object on its axis.
Space Probe a spacecraft that gathers data without a crew.
Populations are organized by... how they acquire energy
For Ecosystems, the major source of energy is Sunlight
Photosynthesis the process where producers transform energy from the sun and make food.
Consumers Animals that get their energy from eating plants and other animals that eat plants.
Community the group of all populations in an area.
Competition the struggle among organisms for the same limited resources.
Conservation is an attempt to preserve or protect an environment from harmful changes.
Decomposer an organism that gets its energy by breaking down wastes and dead organisms.
Ecosystem all the living and non-living things in an area and their interactions.
Environment all of the conditions surrounding an organism.
Food Chain a diagram that combines many food chains into one picture.
Food Web a diagram that combines many food chains into one picture.
Habitat a place that provides all the things an organism needs to live.
Pollution any substance that damages the environment.
Population a group of organisms of one species that live in an area at the same time.
Predator a consumer that hunts and eats another animal.
Prey any animal that is hunted by others for food.
Producer an organism that makes its own food for energy.
Consumer an organism that cannot make its own food.
Species a group of similar organisms that can mate and produce offspring that can also produce offspring.
Plants and some microorganisms are Producers
Bacteria and fungi are the main Decomposers and return nutrients to the ecosystem.
Food Web represents... an intertwining of food chins within the same community.
Symbiotic relationship when individuals of one species depend upon individuals of another species for survival.
Mutualism a relationship where both species benefit.
Commensalism a relationship where one species benefits and the other is unaffected.
Parasitism a relationship where one species benefits and the other is harmed.
Energy flows... through an ecosystem in one direction, from producers, to consumers, to decomposers.
Movement is measured by speed (how fast or slow the movement is)
Speed is measured by time and distance traveled.
Earth pulls down on all objects with... gravitational force.
Weight is a measure of the gravitational force between an object and the Earth.
Prism bends white light and separates the different colors of light.
Reflected colors... are the only colors visible when looking at an object because the other colors are absorbed by the object.
Light travels... in a straight line until it interacts with another object or material.
Sound must travel... through a material (medium) to move from one place to another.
Sound travels at... different speeds through different objects (media).
Light travels... faster than sound.
Visible light (white light) a mixture of the rainbow colors (red, orange, yellow, green, blue, indigo, violet).
The angle that light approaches a reflective surface... affects the direction in which the light is reflected.
Objects that move slowly produce... low pitches
Objects that move quickly produce... high pitches
Refraction involves bending of light when passing into a new medium
Acceleration the rate at which the speed or direction of motion of an object changes over time.
Contact force requires two pieces matter to touch.
Energy the ability to do work or cause change.
Force a push or pull that acts on an object.
Friction the force that results when two materials rub against each other or when their contact prevents sliding.
Gravity the force of attraction between any two objects.
Inertia the tendency of an object to resist any change in motion.
Kinetic energy energy due to motion.
Non-contact force acts at a distance.
Opaque describes materials that do not let any light pass through them.
Potential energy not causing any changes now, but could cause changes in the future.
Reflection light bouncing off an object.
Refraction the bending of light.
Translucent describes materials that let some light pass through, but not all.
Transparent describes materials that let nearly all light pass through them.
Vibration the back and forth motion of an object.
Created by: cheath145
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