Energy

= Energy = There are various forms of energy. Let's start with light energy. (4-8 kidz, you may wish to discuss about any kinds of energy. No limitations. But please use the discussion tab for your discussions. Each group/person that starts the discussion has to come up with a different question/statement/topic. Enjoy!

Light Energy
1) Light is a form of energy. 2)Light enables us to see. 3)Reflection of light is the bouncing of light off a surface. 4) Things which produce light are known as light sources. 5) We can see a light source when light from the source enters our eyes. 6) Objects which do not produce light can be seen because they reflect light into our eyes. 7)Light travels in straight lines. 8) A source of light is anything that gives out light. 9) Light can be grouped into man-made and natural light sources. 10)The main source of light is the sun. 11) A shadow is an area of a darkness when light is completely or partially blocked by an object. 12) A shadow is formed as light travels in straight lines. 13) An object can form more than one shadow. 14)A shadow can be of different shapes and sizes. 15)A shadow has no pattern on it. 16)Light can be reflected. 17)When light passes through objects that are opaque,translucent or transparent, the darkness of the shadows are different. 18)Fire, torches, lamps and fireflies are examples of sources of light. 19)Light is one of the essential things for a plant to make food 20) A shadow is formed when ligt is fully or partially blocked by an object. 20)Without light energy,plants cannot make food 21)Without light energy, we will not be here. 22) Light is a form of electromagnetic energy. 23)Light energy from the sun is trapped during photosynthesis. 24) Without light energy, we will not have food as carnivores depend on plant eaters and plant eaters depend on plants and plants depend ont he sun for energy.

Heat Energy
1) When matter is heated, it will expand. 2) When matter is cooled, it will contract. 3)Heat can cause matter to change states. 4)The melting point of an ice is zero celesius. 5)The boiling point is 100 celesius. 6) Heat travels from a cooler object to a hotter object 7) Heat is the energy of moving molecules. The faster molecules move, the hotter the substance is. 8)Friction produces heat energy. 9)The heat energy is a substance is determined by how active its atoms and molecules are 10)Solid have molecules close together. 11) When heat transfers from one object to another, it is called conduction. Some materials conduct heat better than others. Metal, for example, is a good conductor of heat. We use metal in pots and pans to cook because it will move the heat from the flame to our food quickly. 12)Heat is a form of energy whereas temperature is the measurement of the degree of hotness of an object.

kinetic energy
1)kinetic energy helps us to move. 2)when a fan's blades are propeling, it is using kinetic energy 3) Wind and water are energy sources that posses kinectic energy. 4) Kinetic energy helps us to push and pull objects. //5)Kinetic energy is energy that moves, or is motion energy.// //6)Kinetic energy comes from the base of potential energy.// //**7)**// The amount of kinetic energy can be determined from the equation //Ek=// //½ mv²//, where //Ek// is the amount of kinetic energy in a body with mass of //m// , moving with a velocity of //v// . 8)Kinetic is and expression of the fact that a moving object can do work on anything it hits 9)When a ball is bouncing kinetic energy is in it.