Scholars use sorting cards to try to define a pure substance versus a mixture. Risk becomes reward as they observe the differences and create a flowchart sorting matter into mixtures and pure substances (elements and compounds).

High schoolers examine different mixtures and how they can be separated.  In this electric sieve lesson students complete an activity that allows them to separate mixtures.

Students explore matter by conducting an in class demonstration. In this liquid mixture lesson plan, students identify the difference between a solution in which a solid dissolves into liquid, and a suspension where the solid doesn't...

Students compare and contrast the properties of substances and mixtures. In this chemistry lesson, students simulate spontaneous mixing by performing a short class activity. They differentiate heterogeneous and homogeneous mixtures.

Ninth graders participate in classroom discussions, demonstrations and hands-on laboratory activities about pure substances and mixtures with a focus on common household materials. They investigate: What is a pure substance? What is a...

Investigate the Law of Conservation of Mass through a lab exploration. Individuals combine materials to initiate chemical reactions. They monitor for signs of reactions and measure the masses before and after the reactions for...

Mix it up by using an intriguing resource that teaches young metallurgists that alloys are a metal mixture. They learn about the advantages of using alloys over pure metals and investigate titanium alloys as an example to finish the...

Students observe the effects of acid rain on plants. They simulate an experiment using vinegar or lemon water. They observe the impact of acids on plants and recognize how acid rain can affect the environment. They examine their plants...

Middle schoolers analyze and classify substances.  In this classifying matter lesson, students look at various substances and identify them as heterogeneous or homogeneous mixtures, pure substances, or solutions.  Middle...

Learners predict when an object will float or sink based on comparison of density of the object to the density of the substance in which it is placed. The access a website and sketch the object in the first column of their table and then...

Students use the scientific method to determine physical and chemical properties of unknown substances. In this scientific method lesson plan, students discuss chemical and physical properties of substances as a class after a...

Pupils investigate and explain the differences active transport versus passive transport. This lesson includes an individual and group activity. The basic steps of electrophores is the focus of inquiry. Identification of the pure...

Students investigate elements by by defining scientific terms.  In this Periodic Table of Elements lesson, students utilize a glass of water, and powdered fruit drink to perform a lab activity demonstrating properties of certain...

In this nuclear reaction worksheet, students determine the missing particle from the reaction and then name that particle. This worksheet has 18 problems to solve.

Students explain the processes for separating DNA from tissue and separating complex mixtures.  In this exploratory lesson students complete a lab where they extract DNA.  

Students generate hydrogen gas and examine some of its properities through an experiment. In the experiment, a wood splint is lit along with a candle, then the reaction occurs within the mixture. There are questions for the student to...

Learners engage in a lesson about the scientific concept of matter. They use essential questions in order to guide the research process. Students engage in several class inquiries that are hands on in order to investigate the properties...

Students calculate the concentration of different solutions. In this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.

Students engage in a lesson that is concerned with the concept of water chemistry. They conduct research using a variety of resources. Students also consider an experiment to observe how water has the abiility to exist as three different...

In this lesson, students are introduced to the 5 major types of chemical reactions. Each reaction type will be analyzed and specific examples will be noted. Students will then perform a lab investigation which includes each of the...