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- Grade Range
- 9th - 12th
- Rating
Students experiment with titration of acid and alkaline solutions. They watch a demonstration and measure the acidity, or alkalinity of a liquid. They read signed numbers on the titration device and beaker and discuss the importance of signed numbers. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students describe chemical changes occurring in hydrothermal circulation systems. They make inferences about the significance of these systems to ocean chemical balance compared to terrestrial runoff. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students create a painting that clearly exemplifies the use of primary pigments to make secondary pigments. They demonstrate the distinction between value and saturation. They explain the affect of adjacent colors on each other and discuss Wright's use of color in The Blacksmith's Shop. Full Review »
- Grade Range
- 9th
- Rating
Students explain how atoms and molecules form different substances during chemical reactions and how these processes require losing, gaining or sharing electrons. They correctly write chemical formulas and show how a balanced chemical equation must have the same number and types of atoms on each side of the arrow. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students calculate the mass of reactant needed to produce a given number of moles of product given a chemical equation. They test their calculation by running the chemical reaction. Full Review »
- Grade Range
- 4th - 6th
- Rating
Students discuss certain properties of salt and how it is used everday as well as harmful uses. They experiment with salt to see it conduct electricity, form crystals and water freezing temperature. They complete a worksheet to record their conclusions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students understand how mineral deposits are formed and why they are not evenly dispersed. They create and describe three different precipitates from four solutions simulating mineral ore deposit formation in sedimentary rock. Full Review »
- Grade Range
- 9th - 11th
- Rating
Students design and follow a laboratory procedure. Students identify common substances as acids or bases. Students relate acid-base neutralization to changes in pH. Students relate concepts of acids and bases to commonly encountered applications. Students communicate scientifically the procedures and results of the exercise. Full Review »
- Grade Range
- 11th - Higher Ed
- Rating
Students review the basic components of chemcial reactions. In groups, they complete an experiment in which they synthesize magnesium and aluminum hydroxide. They identify the most common products used in the home that can hold these chemcial reactions. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students explore the differences between acids, bases and pH scales. In groups, they perform experiments to calculate the pH concentration of ions. Using the periodic table, students compute the mass and graph their observed data. Full Review »