Elements, compounds and mixtures WHAT IS AN ELEMENT? An element is… • material made of just one type of atom • A substance that can not be separated or broken down into simpler substances by chemical means What are the 3 most abundant elements that make up the earth? answer • ...
A good example of when science teachers use the word particle is when talking about air. Air is a mixture of elements such as oxygen, argon and nitrogen mixed with compounds such as carbon dioxide, or you can say that air is a mixture of particles. Some of the elements in air go aroun...
Elements and Compounds ? Elements – All particles are alike – The smallest particle of an element that is still recognizable is called an atom – They can’t be broken down anymore without completely destroying it (nuclear explosion) – They are found on the periodic table ? Currently there...
Mixtures, Elements and Compounds Learning Targets: I will be able to: distinguish between elements, mixtures, and compounds. describe ways to separate mixtures into their original components. Mixtures, Elements, Compounds Scientists like to classify things. One way that scientists classify matter is by...
Elements,compoundsandmixtures WHATISANELEMENT?Anelementis…•materialmadeofjustonetypeofatom •Asubstancethatcannotbeseparatedorbrokendownintosimplersubstancesbychemicalmeans Whatarethe3mostabundantelementsthatmakeuptheearth?•Oxygen•Iron•silicon answer Compositionoftheearth Whatare3mostcommonelementsthat...
Matter, Elements, Compounds and Mixtures Grand Prismatic Spring in Yellowstone National Park Source: David Maisel/Stone/Getty Images Why does a hot dog get hot in the microwave? Why does wood burn but rocks do not? How does soap work? When Iron rusts, what is happening to it? Why doesn...
Elements, Compounds, and MixturesKellermanElizabeth R|BardenCindy
elements-compounds-mixtures ClassifyingMatter:Elements,Compounds,andMixtures ByLizLaRosa5thGradeSciencewww.middleschoolscience.com2009 PureSubstances Asampleofmatterthathasdefinitechemicalandphysical properties.Elements puresubstancethatcannotbeseparatedintosimpler substancebyphysicalorchemicalmeans.Compounds Pure...
元素(Elements) 指自然界中一百多种基本的金属和非金属物质，它们只由一种原子组成，其原子中的每一核子具有同样数量的质子，用一般的化学方法不能使之分解，并且能构成一切物质。 化合物(pounds) 是指从化学反应之中所产生，由两种或两种以上元素构成的纯净物（区别于单质）。 例如：氯化钠(sodium ...
Mixtures, Elements, and Compounds 混合物,元素,与化合物-文档资料 ElementsandCompounds •Elements –Allparticlesarealike–Thesmallestparticleofanelementthatisstillrecognizableiscalledanatom–Theycan’tbebrokendownanymorewithoutcompletelydestroyingit(nuclearexplosion)–Theyarefoundontheperiodictable•Currentlythereare...