Science

theory

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Terms in this set (92)

Darwin's _______ of evolution says that plants and animals change over time and adapt to their environments in order to survive. = an idea or set of ideas that is intended to explain something about life or the world

survive

They are not sure if the plants will ______ this cold winter. = to continue to live normally in spite of many problems

adapt

Animals have to _____ to new environments in order to survive. = to gradually change your behavior and attitudes in order to be successful in a new situation

analyze

The scientists have to ______ the data before they can say what caused this problem. = to examine or think about something carefully, in order to understand it

discoveries

Astronomers have made important _______ about our galaxy using the Hubble Telescope. = a fact or thing that someone finds out about, when it was not known about before

experiment

The scientists did an ________ to see what happens when they combine these chemicals. = a scientific test done to find out how something reacts under certain conditions, or to find out if a particular idea is true

evidence

At present we have no ______ of life on other planets. = facts or signs that show clearly that something exists or is true

objective

Scientists need to be _______ when doing research. = based on facts, or making a decision that is based on facts rather than on your feelings or beliefs; opposite of subjective

invented

Alexander Graham Bell _______ the telephone in 1876. = to make, design, or think of a new type of thing

hypothesis

A good scientist forms a ________ and then does experiments or observation to see if it is true. = an idea that is suggested as an explanation for something, but that has not yet been proved to be true

proveThe results of her experiment ______ that his hypothesis was right. = to show that something is true by providing facts, information etcstatisticsThe scientific report includes many ______. = a set of numbers which represent facts or measurementsrandomlyThe people in the experiment were _______ put into two groups. = happening or chosen without any definite plan, aim, or pattern; by chancecontrolThere was a ______ group to see drug really had an effect during the experiment. = a person, group etc in an experiment that does not get the drug, etc. to see if the drug really works or the effects are just by chance.obsoleteThe typewriter is now pretty much _____. = no longer useful, because something newer and better has been inventedchemistryShe studied ______ in college. = the science that is concerned with studying the structure of substances and the way that they change or combine with each otherengineering_______ is a popular major. = the work involved in designing and building roads, bridges, machines etcfusionThe Sun uses _____ to produce light and heat by combining hydrogen atoms. = a physical combination of separate thingsfissionThe atomic bomb and nuclear power plants use _____ to create energy. = the process of splitting an atom to produce large amounts of energy or an explosionthermodynamicsNewton has four laws of _____. = the science that deals with the relationship between heat and other forms of energyatomHydrogen is the simplest element and is an _____ that has one proton and one electron. = the smallest part of an element that can exist alone or can combine with other substances to form a molecule:moleculeA water ______ contains one atom of oxygen and two atoms of hydrogen. = the smallest unit into which any substance can be divided without losing its own chemical nature, usually consisting of two or more atoms:elementHydrogen is the simplest _____. = a simple chemical substance such as carbon or oxygen that consists of atoms of only one kindphotosynthesisThe children studied _____ in school. = the process that green plants use to convert sunlight into energy.speciesThe biologists were studying several _____ of birds. = a group of animals or plants whose members are similar and can breed together to produce young animals or plantsradioactiveNuclear power plants produce ______ waste. = substance is dangerous because it contains radiation (=a form of energy that can harm living things)generateWind turbines _______ electricity for the local community = to produce heat, electricity, or another form of energyparticleThe scientist use a _______ accelerator to study quantum physics. = one of the types of pieces of matter including.electrons, protons, and neutrons that make up atomssubstanceThe leaves were covered with a strange sticky _______ = a particular type of solid, liquid, or gas.massThe Sun makes up 99.9% of the _______ of our solar system. = the amount of material in somethingvolumeThe scientists measured the ______ of container = the amount of space in a containercompoundSulphur dioxide is a ______ of sulphur and oxygen. = a substance containing atoms from two or more elements; a combination of two or more thingsformulasThe students had to memorize some ______. = a series of numbers or letters that represent a mathematical or scientific rulebondsIn each methane molecule there are four CH ______. = the chemical force that holds atoms together in a molecule:orbitThe earth is in _____ around the Sun. = the curved path travelled by an object which is moving around another much larger object such as the Earth, the sun etcelectricityThe _____ went out during the storm. = the power that is carried by wires, cables etc, and is used to provide light or heat, to make machines work etcbalancePesticides seriously upset the ____ of nature. = a state in which opposite forces or influences exist in equal or the correct amounts, in a way that is goodreactionThere was a chemical _____ that caused the explosion. = a chemical change that happens when two or more substances are mixed togetheracidHe burned himself when the ____ touched his skin. = a chemical substance that has a pH of less than 7. When it is strong it can burn holes in material or damage your skin; opposite of baseevolutionCharles Darwin came up with the theory of ______. = the scientific idea that plants and animals develop and change gradually over a long period of timegravityThere is no ____ in the space shuttle. = the force that causes something to fall to the ground or to be attracted to another planetpropertiesOne of the _______ of a diamond is that it is very hard. = a quality or power that a substance, plant etc has [= quality, characteristic]:gasThere was a poisonous ____ in the room. = a substance such as air, which is not solid or liquid, and usually cannot be seensolidIce is the ______ form of water. = a firm object or substance that has a fixed shape, not a gas or liquid:liquidWater is a ______. = a substance that is not a solid or a gas, for example water or milk:physicsHe is taking a _____ class. = the science concerned with the study of physical objects and substances, and of natural forces such as light, heat, and movementmotionShe studies the _____ of the planets. = the process of moving or the way that someone or something moveselectrona very small piece of matter with a negative electrical charge that moves around the nucleus (=central part) of an atom [↪ proton, neutron]neutronThe ____ is the part of an atom that has no electrical chargeprotonThe ____ is a very small piece of matter with a positive electrical charge that is in the central part of an atommagnetDon't put your BART card next to a ____. = a piece of iron or steel that can stick to metal or make other metal objects move towards itselfelectromagnetismThis machine uses _____. = a force relating to electric and magnetic fields, or the study of this forcequantum mechanicsShe is studying ______. = the scientific study of the way that atoms and smaller parts of things behaverelativityEinstein developed the theory of _____. = the relationship in physics between time, space, and movement according to Einstein's theoryplanetMercury is the smallest ____ in our solar system. = a very large round object in space that moves around the sun or another stargalaxyWe live in the Milky Way _____. = one of the large groups of stars that make up the universeasteroidThe earth was hit by an _____. = a very small planet in spacecometHaley's _____ can be seen from Earth every 75 years. = an object in space like a bright ball with a long tail, that moves around the sunblack holeNothing can escape a _____. = an area in outer space into which everything near it, including light, is pulledchargeThis battery has no ____. = electricity that is put into a piece of electrical equipment such as a batterycurrentOne type of _____ is AC, and the other is DC. = a flow of electricity through a wirescientific methodStudents learn about the _______. = the usual process of finding out information in science, which involves testing your ideas by performing experiments and making decisions based on the resultsempiricalThere is _____ evidence to support global warming. = based on scientific testing or practical experience, not on ideasobservationsJane Goodall made many _____ about the behavior of gorillas.dataThe scientists collected ______ about the use of pesticides in farming. = information or facts:biologyShe got her degree in ______. = the scientific study of living thingstaxonomyBiologists organize plants and animals into a _____. = the process or a system of organizing things into different groups that show their natural relationships, especially plants or animalsgeneticThis disease is ______. = relating to genes and the idea of passing things from parent to childcellShe has a low white blood ____ count. = the smallest part of a living thing that can exist independentlybotanyHe is interested in ______. = the scientific study of plantsphysiologyShe is taking a course on ________. = the science that studies the way in which the bodies of living things workreptilesLizards and alligators are _____. = a type of animal, such as a snake or lizard, whose body temperature changes according to the temperature around it, and that usually lays eggs to have babiesenvironmentDarwin said that living things adapt to their _______. = the natural features of a place, for example its weather, the type of land it has, and the type of plants that grow in itecologyHe is studying _______. = the way in which plants, animals, and people are related to each other and to their environment, or the scientific study of thisecosystemOne change in an _______ can cause a lot of damage. = all the animals and plants in a particular area, and the way in which they are related to each other and to their environmentmetabolismThis drug speeds up your ________. = the chemical processes by which food is changed into energy in your body:organismsScientists have found strange ______ living at the bottom of the sea. = an animal, plant, human, or any other living thing.reproduceSome animals _______ through live birth while others lay eggs. = when an animal or plant makes more young plants or animals:natural selectionThe idea of _____ is that organisms that can adapt to their environment will survive.genesHalf of your _____ come from your mother and the other half come your father. = a part of a cell in a living thing that controls what it looks like, how it grows, and how it develops. People get their genes from their parentsDNAThe scientists will do _____ testing on the people in the experiment. = stands for deoxyribonucleic acid which is the substance that carries genetic information in the cells of the bodymembraneThe cell ______ was damaged. = the thin outer layer of a cell that separates the inside from the outsidedivideIn mitosis, cells _______ in order to reproduce. = split into two or more parts.probabilityThere is a high ______ that there will be an earthquake in the next few years. = how likely something is, sometimes calculated in a mathematical way [= likelihood, chance]test tubeThe scientist picked up a ____.telescopeThe astronomer looked through a _____.microscopeThe scientist analyzed the cells using a ______.mammalsHumans, dogs, and whales are _______. = a type of animal that drinks milk from its mother's body when it is young.spaceThe studied about the history of _____ travel. = the area beyond the Earth where the stars and planets aredependentIn the sentence: "Time Spent Studying" causes a change in "Test Score," the test score is the _______________ variable. = the result of your experimentindependentIn the sentence: "Time Spent Studying" causes a change in "Test Score," the time spent studying is the _______________ variable. = the thing you change in the experiment to see if it affects the result.variablesThere were too many _____________ in the experiment, so they didn't know what caused the result. = the thing that changes in the experiment