This activity is a classroom investigation where students separate pigment in dyes in order to learn about mixtures and solutions. They use chromatography to design and experiment with a single variable to answer a question about which ink will separate the most - has the greatest variety of pigment.

This activity is a indoor lab where students investigate the current differences in different circuits where students build a small house and construct different types of circuits.

This plan involves observing and labeling clouds and conducting an experiment on how clouds form.

This is an exploratory activity involving matter and density. There are many assessment pieces including a laboratory.

This activity is an interactive demonstration of the concept of density with a guided inquiry component.

This activity is a field collection investigation where students gather earth materials and make observations about their collection that leads them to discuss the nature of Earth surface and how it is changing.

In this activity students use a simple model of the moon to do an experiment to see how impact craters are formed. The lesson worksheets are differentiated and students are put into pre-determined teams by ability to conduct the experiment.

This activity is a group lab activity where students explore beginning electrical circuits.

In this lab, the students will test a variety of materials to discover which items are conductors and which items are insulators. They will discuss, classify, record data, and develop new questions relating to electricity.

This activity is an indoor lab where students build a model to observe the effects of weathering and erosion.

This activity is an investigation where students gather information about the rate of evaporation, interpret their findings, and apply this knowledge to the water cycle.

This article highlights resources that can be used to supplement lessons on extreme weather, including games and video clips. The article appears in the free, online magazine for K-Grade 5 teachers Beyond Weather and the Water Cycle. The magazine focuses on the essential principles of climate science.

This activity is a lab investigation in which students observe the rate of generation of hydrogen gas from a reaction, and then modify the procedure to compare another variable affecting the rate of this reaction.

This activity is a field investigation where students will gather data on speed, acceleration, gravity, friction, and forces. They will design and conduct an investigation.

This activity needs large linoleum, carpet and tar or asphalt space to race student constructed balloon powered cars. Students will learn that speed, velocity, and changes in velocity are the result of the action of forces on objects

This activity is a lab activity where students grow two radish seeds, and manipulate a variable that may affect the germination time and growth of the radish seed.

This activity is a guided inquiry investigation where students will propose a question on what makes an electromagnet stronger. They will conduct a controlled experiment to answer their own question.

This activity is an inquiry investigation where students manipulate a variety of objects in a variety of situations to develop an understanding of inertia.

In this chemistry experiment, students will learn the fundamentals of copper plating (without using electricity) and if desired, extend the activity using different variables.