Bacteriologists prepare their own agar plates and culture bacteria on them. The procedures for both tasks are delineated, and questions are posed, but no materials list is printed. Also, the exact amounts of water and nutrient agar are...

In this integers and absolute value learning exercise, learners write the opposite value for each integer in the first twenty problems. They write the absolute value for twelve problems in the second set, and finish with two test prep...

Young meteorologists answer questions based on the types of weather they experience in the region they live. They also complete a word search to find weather-related terms.

A somewhat strangely formatted slide show that contains multiple examples of matter types. The classification and state explanations given would be useful as practice of substance identification and the heating curve may prove to be...

Help scholars explain the concept of positive and negative numbers. Here you will find three separate activities that will help them to correlate positive and negative numbers with real life. Note: Activities require that the teacher...

Students experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.

Students explore the states of matter. They discuss the different phrases of matter and categorize everyday substances as solids, liquids, or gases. Students explore the relationship between the phases on an atomic level and the role of...

Use this lesson to have your charges consider the differences between food spoilage and food-borne illnesses including the differentiation of food infections and food intoxication, including characteristics of each. Some excellent...

In this science review for grade 3 (3.5) activity, 3rd graders answer 25 multiple choice questions in standardized test format about fossils, simple machines and heat transfer.

In this chemistry terminology worksheet, students review and discuss nineteen terms associated with chemistry and then locate and circle each term in a word search puzzle.

In this variables in experiments worksheet, students read about control variables and experimental variables before they respond to 15 graphic organizer and short answer questions.

Fourth graders explore food science by participating in a cooking activity. In this soybean oil lesson, 4th graders listen as the teacher gives them a background on soybeans and their use by humans today. Students grind soybeans and...

In this algebra worksheet, 9th graders solve addition, subtraction and multiplication of integers using the correct order of operation. There are 14 questions with an answer key.

Learners investigate various chemical reactions when creating mixtures in ziplock baggies. In this chemistry instructional activity, students will recognize various chemical reactions and cite evidence. Safety and assessment strategies...

Fifth graders watch a demonstration in which a balloon is inflated using the gas created by combining vinegar and baking soda. Then, in groups, they combine various assigned substances and watch and record the results.

Students examine the changing states of water. In this solid, liquid, gas lesson, students discover that water changes when heated or cooled. Students make predictions and then use the interactive whiteboard to "heat and...

Students determine crude oil can be separated into useful fractions by a process of fractional distillation. They write a balanced equation for the reaction between a hydrocarbon and oxygen.

Students focus on stellar luminosities to estimate size of habitable zones, map out habitable zone around hot light bulbs that serve as models of stars, investigate how size of model "habitable zone" around light bulbs depends on...

Students observe demonstrations that show adhesion, cohesion, equilibrium density, pressure of gases and solubility. In this gases lesson plan, students observe a demonstration of raisins, spaghetti, and popcorn moving up and down in...

In this oil, fossil fuels and Earth's atmosphere worksheet, students answer 3 questions about the origin of oil and its uses, the effects of burning oil and fossil fuels on the Earth's atmosphere and the origin and maintenance of the...

Learners explore colonial cooking.  In this cross curriculum George Washington and colonial America history lesson, students follow a recipe for cranberry pudding, a possible favorite of George and Martha Washington. Learners...

Students explore physical and chemical changes. In this chemistry lesson plan, students will go outside to observe changes seen in nature. Students will then work in the lab to identify changes at different stations prior to doing a...

Students conduct a series of hands-on activities to demonstrate that heated air expands and that warm air rises because it is less dense.

In this solutions worksheet, learners soak a pipe cleaner in hot water and a supersaturated solution of 20 Mule Team Borax. Students leave their pipe cleaner in the solution for 30 minutes and then observe. They put it back in over night...