Mira's Science Blogs

Summary: As you probably already know, there are different types of energy sources. All of them have at least some cons and some pros. Some energy sources include Coal, Nuclear Power, Natural Gas, Hydro, oil, Geothermal, Wind, Solar, Solid Waste, and Landfill Gas. Wow! Thant's a lot! If you are interested then keep on reading! Electricity from coal The first one is electricity from coal. One good thing about electricity from coal unlike hydro is that it is very affordable. It is also an unrenewable form of energy. This means that it cannot be reused. Coal supply is also limited and cannot be replaced. Coal also takes quite a while to make. Changing coal into electricity involves a few steps. First, coal gets ground into powder, that gets mixed with hot air. Then, the combination gets put into a furnace which heats up a boiler that contains water to create steam.  The steam turns a turbine engine which makes heat energy.  Nuclear Power The next source is ...

Link Summary: This week in science we were learning about electricity. Electricity is the flow of electrons. Electricity flows in a circle, but it does not have to be a circle exactly. To complete the circuit, the beginning of the wire and the end of the wire have to connect. Filament Electricity is lazy and it does not like to go through light bulbs beca use it is like a traffic jam in there.  Only one electron can go in at a time.  This is because the filament is really, really thin. The filament is a wire inside of the bulb that lights it up.  We are forcing the electricity to go through when there is only one pathway. Short Circuits: A short circuit is a circuit that does not have any work to do.  Another example is a circuit without a lightbulb. That can be dangerous because there is nothing for the electrons to light up so it circles faster, and faster in the circuit getting hotter and  hotter. Eventually, this can cause an explosion! ...

link Link Summary: This week we were learning about minerals. Each person chose a mineral that they wanted to learn about, and then they started researching about it. After that, we put our research into a magazine. We used jilster . The mineral that I chose was Miargyrite. What is that? Read on to find out... First we should check if miargyrite is even a mineral. Do you remember what it takes to be a mineral? Do you remember what each part means? We'll go over it. The first characteristic that it takes to be a mineral is naturally occurring (not made by humans.) Is miargyrite naturally occurring? Yes. It is formed in nature. It is not really known how miargyrite is formed, but we know that it is naturally occurring. The next fact we should check on is, is miargyrite inorganic? (Not alive.) We know that Miargyrite is not alive because it is not made up from plants or animals. It does not need food to survive.  The third feature that it needs is to be ...

Link Summary: What is a Mineral? What does it take to be a mineral? This week we were learning about rocks and minerals. What is the difference between rocks and minerals? Minerals are naturally occurring inorganic solids with a definite chemical composition, and an ordered atomic arrangement. This might be a lot at once, but I will explain it all later. A rock is a solid mineral that keeps changing shape. If it does not make sense now, soon it will. Just keep on reading... Minerals: Link To be a mineral, as I already said you need to be a naturally occurring inorganic solid with a definite chemical composition, and an ordered atomic arrangement. Wow, wow, wow, what does all of that mean? That is what I am going to go over now! The first thing is that you need to be natur ally occurring.  This mean that minerals are NOT made from humans. They natur ally came from natur e . Do you notice anything in those highlighted words? They all have the root...