Our solar system consists of the sun, eight planets, moons, many dwarf planets (or plutoids), an asteroid belt, comets, meteors, and others. The sun is the center of our solar system; the planets, their moons, a belt of asteroids, comets, and other rocks and gas orbit the sun.
The eight planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Another large body is Pluto, now classified as a dwarf planet or plutoid. A belt of asteroids (minor planets made of rock and metal) lies between Mars and Jupiter. These objects all orbit the sun in roughly circular orbits that lie in the same plane, the ecliptic (Pluto is an exception; it has an elliptical orbit tilted over 17° from the ecliptic).
Easy ways to remember the order of the planets (plus Pluto) are the mnemonics: “My Very Excellent Mother Just Sent Us Nine Pizzas” and “My Very Easy Method Just Simplifies Us Naming Planets” The first letter of each of these words represents a planet – in the correct order.
The largest planet is Jupiter. It is followed by Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury, and finally, tiny Pluto (the largest of the dwarf planets). Jupiter is so big that all the other planets could fit inside it. The Inner Planets vs. the Outer Planets The inner planets (those planets that orbit close to the sun) are quite different from the outer planets (those planets that orbit far from the sun).
The inner planets are: Mercury, Venus, Earth, and Mars. They are relatively small, composed mostly of rock, and have few or no moons.
The outer planets include: Jupiter, Saturn, Uranus, Neptune, and Pluto (a dwarf planet). They are mostly huge, mostly gaseous, ringed, and have many moons (again, the exception is Pluto, the dwarf planet, which is small, rocky, and has four moons).
Learning Intention:Today you are going to learn about the characteristics of planets
# Select a Planet
Record information on:
Name, Meaning of the Name, Position in the Solar System, Size, Moons, Rings, Gravity, Atmosphere, Temperature, Rotation of Axis, Composition of Planet, How a Human would fare on this planet, Discovery of this planet and References you have used.
Sand is a solid that you find at beaches or in deserts. It is the result of stone that has eroded.
Sand is a solid because each grain of sand is just a very small solid that can hold its shape. When it is poured, the small grains of sand pile up on each other to form a small hill and not a flat surface. Furthermore, it does not completely fill the container like a liquid. While it may appear to do this, there are in fact lots of small spaces between the grains of sand. Each grain of sand is unable to flow to fill these small spaces. As a result, we can carefully pour water into a container of sand without spilling anything over the edge. We are able to do this because water is a liquid that can flow and fill the small spaces between the solid grains of sand.
Sand is a solid that appears to act like a liquid when, in actual fact, it does not.
Since you can pour sand into a cup, why isn’t it a liquid?
2) You can’t usually see gases in the air. How can you observe gases without seeing them?
3) Can you feel water in the air? Explain your answer.
Learning Intention: Using Notability take notes (dot points, arrows, diagrams, images) about gas. Then send your work to me via Showbie.
Like solids and liquids, gas is a common state of matter.
Pure gases are made up of just one atom. Neon is an example of a pure gas.
Elemental gases are made up of two or more of the same atoms joined together.Hydrogen gas (H2) is an example an elemental gas.
Compound gases contain a combination of different atoms. Carbon monoxide (CO) is an example of a compound gas.
The air we breathe here on Earth is made up of different gases. It contains around 78% nitrogen, 21% oxygen, 1% argon and a small amount of other gases.
Natural gas contains mostly methane, it is used as a fuel to generate electricity and is common in the home where it can be used for heating, cooking and other purposes.
Gas pressure is measured in pascals.
The helium balloons you get at parties and carnivals float because helium is lighter than the air surrounding it.
Noble gases are a group of chemical elements that are very stable under normal conditions. Naturally occurring noble gases include helium, neon, argon, krypton, xenon and radon.
The ozone layer that protects Earth from the Sun’s potentially damaging UV light is made up of ozone (O3), an oxygen allotrope containing 3 oxygen atoms bound together.
Nitrous oxide (N20) is a gas with interesting properties that allow it to be used in a variety of different ways, these include as an anesthetic in hospitals (you may have heard it referred to as laughing gas) and to increase the power of engines in motor racing (often called nitrous or just NOS).
If a mushroom is not a plant, what is it? Discover a group of living things that are neither animals nor plants. Explore the mysterious world of fungi and find out the conditions that they need before they can grow.
1) Have you ever seen mould growing on bread?
1a) How does it get there? 1b) Where else might mould grow?
1c) Mould is a fungus. 1d) Do you know any other types of fungi?
2) How does Nick use the example of green-leafed plants to explain that mushrooms are not plants?
2a) What do fungi feed on? 2b) Can you list six different types of fungi?
2c) What part of living fungi are mushrooms? 2d)Why does a mushroom produce spores?
3) Explain to someone else what you know about fungi. You may want to focus on mushrooms. Include what you know about the conditions they thrive in. Explain how we know they are not plants.
4) Find out more about spores and how fungi use spores to reproduce.