Matter is anything that has mass and volume. Density is the mass per unit volume of an object. Density allows you to compare different types of matter, and is a very important property. All matter has density, and the density of different kinds of matter is the property that helps identify it from other types of matter. The formula for density is:
Density = Matter/Volume
Density is written as g/cm3 because matter is grams and volume is centimeters cubed. It is important that everything done in science is written in metric units because that is a universal unit of measurement. The density of fresh water is 1g/cm3. Anything with the density lower than water will float, like ice, and anything with the density higher than water will sink, like steel. Above are densities of common substances.
Some new information I learned was that density was discovered by the Greek mathematician Archimedes around 250 B.C. To see the full story click here. I also learned that density can be helpful in real life. It is critical for building ships, because they need to float on water as well as for building “lighter-than-air" crafts like hot air balloons. I also learned that density is a physical property of matter; for example, water and ice have the same chemical formula but different densities.
My opinion on density is that it is very useful and can be used in real life, not just in science class. Therefore this makes density an important topic to learn and understand. It allows you to compare types of matter, and every object has matter. So, all in all, density is an important property to learn, and I am glad we have learn how to find it, understand it, and use it.
I got my information and picture from:
6 comments:
I liked this blog! I thought that you told what density was very well. So if you didnt know what density was you could learn it by reading this blog.
Good job on your blong! I liked how you included how yow fing the density and gave plenty of detail about the lab. It would help so many people who don't know about densities of diferent liquids.
i love how you posted a graph/chart along with the rest of your blog. it really helped me to understand density and easily figure out mass and volume
i love this blog! its really good! i like the way you put the graph up because without it i wouldn't even know most of it. I also loved how you descrived everything like when you explained why they put a g/cm3. Amazing job pianoplayer97!
Thanks.
Your blog was very well done and it was really cool how you had the chart along with it so the readers could get a nice visualization in their mind. Its really helpful also, to understand how to find density, mass and volume. Good Job!
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