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science matter
all about matter in science
Question | Answer |
---|---|
give 5 examples of liquids and gases | liquids: energy drinks,water,juice,smoothies,milk gases: steam,helium,oxygen,nitrogen,hydrogen |
what are the characteristics of a solid? | a solid is anything that has volume and has a definite shape |
what makes a liquid? | a liquid has a definite volume and takes the shape of its container, or it flows in open space |
what are the characteristics of a gas? | a gas has no definite volume but takes up space and spreads to the shape of the container it is in or spreads freely |
what is matter made of? | matter is made up of tiny microscopic particles called atoms [or molecules] |
what are the particles inside of a solid doing? | the particles are held tightly together [almost like they are "glued" together] . The particles are still moving, but very slowly |
what are the particles inside of a liquid doing? | the particles are still close together but not as tight as solids. The particles are moving more quickly that they constantly slide past each other |
what are the particles inside of a gas doing? | the particles are spaced very far apart. The particles move very quickly and easily bounce off of any wall they travel to |
what is a physical change? | a physical change is a change of state only so, it can be reversed |
what is a chemical change? | a chemical change is a change where the materials break down completely, therefore it can't be reversed. |
give 4 examples of a chemical and physical change | physical: ice froming on a pond, souring milk, water boiling and vaporization of dry ice [from a solid to a gas] chemical: rust on a car, wood burning, an apple that turns brown after you bite into it and burning gasoline |
say the scienctific method steps in order | Question,Hypothesis,Procedure,Results and Conclusion |
what is precipitation? | when rain or snow come down to the ground. [could also be sleet,hail...etc] |
what is runoff? [water cycle] | when rain or snow [also sleet hail...etc] goes from rivers to the ocean |
what is evaporation? | when rain or snow [also sleet,hail...etc] becomes a gas [once in the ocean] without forming bubbles inside the liquid volume |
what is condensation? | when water vapor in the air is changed into liquid water |
where can you find matter? | matter is everywhere.You can find it anywhere. |