This resource is a video that compares the rate of melting when …
This resource is a video that compares the rate of melting when ice cubes are placed on aluminum and foam surfaces. The video accompanies the lesson plan, "Changing State: Melting."
Students will see a small piece of ice melt on an aluminum …
Students will see a small piece of ice melt on an aluminum surface. Students will explain the energy transfer and molecular motion which cause the change in state from a solid to a liquid.
Students will analyze the chemical equation for the reaction between vinegar and …
Students will analyze the chemical equation for the reaction between vinegar and baking soda. They will make the connection between the written chemical equation, the molecular model and the real substances in the chemical reaction. Students will see that the gas produced in the actual reaction is also written in the products of the equation. Students will also change the amount of one or more reactants and see how the change affects the amount of products. Included with, and linked into, this lesson plan are a student activity sheet, a reactants image, a products image, an image showing mass is conserved, a Controlling the Amount of Products formed image as well as an answer key for the student activity sheet.
Students measure the volume and mass of water to determine its density. …
Students measure the volume and mass of water to determine its density. Then they measure the mass of different volumes of water and discover that the density is always the same. Students make a graph of the relationship between the volume and the mass of water.
In this interactive lesson, students will conduct two chemical reactions. In the …
In this interactive lesson, students will conduct two chemical reactions. In the first, the temperature will go down (endothermic) and in the second, the temperature will go up (exothermic). Students will view an animation to review the concept that it takes energy to break bonds and that energy is released when new bonds are formed. Students will use this idea to explain why a reaction is either endothermic or exothermic. Linked into this lesson is a student activity sheet, a video on thermite reaction, a video on Nitrogen triodide reaction, a White Phosphorus Reaction video, a Methane Combustion Energy animation, an image showing a baking soda and calcium chloride reaction, an image showing a baking soda and vinegar reaction, both an endothermic and exothermic reaction animation as well as an answer sheet for the student activity sheet and teacher background information on exothermic and endothermic chemical reactions.
Students use the water displacement method to find the volume of different …
Students use the water displacement method to find the volume of different rods that all have the same mass. They calculate the density of each rod and use the characteristic density of each material to idenfity all 5 rods.
Students will do a hand-on experiment to create a precipiate and analyze …
Students will do a hand-on experiment to create a precipiate and analyze chemical equations to see that all atoms in the reactants end up in the products.
Students will describe their observations of water on the molecular level using …
Students will describe their observations of water on the molecular level using the idea that water is composed of tiny molecules that are attached to one another. Students will investigate a drop of water hanging from a dropper and drops of water beading up on wax paper.
This animation goes with the "Molecules in Motion" lesson plan. Students will …
This animation goes with the "Molecules in Motion" lesson plan. Students will learn that molecules in cold water move slowly and are close together while molecules in hot water move fast and are a little further apart.
Students will focus on the first 20 elements. Students will first look …
Students will focus on the first 20 elements. Students will first look at a diagram and animation to understand the basic pattern of the arrangement of electrons on energy levels around an atom. Students can be given cards with information about the electrons and energy levels for each of the first 20 atoms. They can try to correctly match the cards with the element. This lesson includes, with direct links to, a student activity sheet, an image of an energy level cross section, an image of an oxygen atom, an image of a periodic table of energy levels, videos on sodium in water, potassium in water and calcium in water as well as sodium, potassium and calcium in acid, an answer key for the student activity sheet and a teacher background section on energy level models.
Students will observe a solubility test between salt and sugar. They will …
Students will observe a solubility test between salt and sugar. They will then be presented with 4 known crystals and an unknown. Based on the solubility demonstration, the class will design a solubility test to discover the identity of the unknown.
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