'Chemical change chemical reaction' diaporamas de présentation

Science, Matter, Energy, and Systems

2. Science, Matter, Energy, and Systems. 2-1 What Do Scientists Do?. Science is a search for order in nature The scientific method Identify a problem Find out what is known about the problem Ask a question to investigate Collect data to answer the question Propose a scientific hypothesis.

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Matter

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Matter

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386 views • 31 slides

Chapter 3 Matter

Chemistry 101. Chapter 3 Matter. Matter. Matter: has mass and takes space. States of Matter. Changes. Chemical change (chemical reaction): substance(s) are used up (disappear) ? others form burning or cooking the egg.

257 views • 25 slides

Physical and Chemical Changes

Physical and Chemical Changes. Concept of Change. Change: the act of altering a substance. Physical Change. Physical change: a change that occurs that does not change the identity of the substance Melting ice Freezing Kool-aid Tearing paper Boiling water. Chemical Changes.

64 views • 6 slides