A brief explanation of regular present tense conjugations introduces a variety of nine exercises that practice each type of conjugation -ar, -er, and -ir. Endings are first matched to pronouns, and then gap-fill exercises provide verb...

A brief explanation of the preterite tense and of its regular conjugations introduces a variety of exercises that practice each type of conjugation -ar, -er, and -ir. Endings are first matched to pronouns, and then gap-fill exercises...

[Free Registration/Login may be required to access all resource tools.] Overview of the structure and role of the endoplasmic reticulum, Golgi apparatus, vesicle, vacuole, and centriole. This tutorial also helps students distinguish...

The third in a series of three lessons,that focus on regular verbs in the present tense. Fantastic summary of regular present tense conjugations and the use of subject pronouns. The explanation is thorough and easy to understand. The...

Check out this ERS state fact sheet on Wyoming from the U.S. Department of Agriculture. You will find information on the population, farm characteristics, and top commodities and exports. This would be a good starting point for a state...

[Free Registration/Login Required] Every grammar teacher will love finding this site filled with ready-made activity worksheets to practice basic grammar skills. Some include compound sentences, prepositions of location (with pictures),...

In this interactive game, students select either a prefix, or a suffix, or both to a word to make a new word. It uses common prefixes and suffixes such as pre, sub, re, un and ly, ful, less, er.

By performing a water audit at school and at home, students will become aware of ways to reduce their water use.

Students work in groups to plan a flight around the country. The activity explores estimation, number sense, measurement, and patterns. The resource consists of a lesson plan, group activity instructions, lesson overview, and an expert...

Take a fascinating trip into the past to experience how gas stations have evolved from livery stables in Wisconsin. In addition to the descriptions of the architectural styles through the decades, history is brought to life with a video...

Students practice making words with -ed, -ing, and -er suffixes. [PDF]

This program focuses on the networking of those across Canada to develop a strong research-based history for better teaching to students from kindergarten through college.

This lesson looks at how the forces of an earthquake impact on buildings, and different ways to make buildings earthquake-proof. Includes student worksheet and tectonic plates map.

From the San Francisco 49er's Museum Education Program which promotes STEAM projects, 7th graders explore statistics and percentages via a WebQuest.

An exceptionally thorough summary of known information on erbium. Very good site.

There are three levels in this interactive word game. Match the initial and final sounds to create a word to name the picture. ER words: herd, fern; IR words: bird, girl; UR words: curl, surf.

Surfer Girl is an interactive story that allows you to practice reading words with the er, ur, and ir sounds.

A concise explanation of the French literary tenses with examples and comparisons to spoken language. Has sample conjugations of auxiliary verbs as well as er, ir, re verbs.

Get verb conjugation help here with multiple "AR, ER and IR" verbs to work with. Use the site to learn how each of these verbs are conjugated in different tenses.

A great explanation of the imperfect tense introduces thirteen multiple choice, matching, and gap-fill exercises that provide plenty of practice with regular and irregular conjugations. The "vosotros" form is also used. A great way for...

Lesson plan in which young scholars observe and contrast thermal properties of three major greenhouse gases. Using simple, readily available materials, students collect temperature change over time for dry air, water-saturated air,...

A lab experiment, in a series of experiments, that investigates fisheries. In this lab, students test the effects of fertilizers and other pollutants on a model ecosystem. Students also examine 2 years of ocean color (chlorophyll...

Find out about the six major air pollutants. In-depth descriptions of ozone, nitrogen dioxide, particulates, sulfur dioxide, carbon monoxide, and lead are provided.

Read about the destructive process of desertification and how this impacts human beings, how satellite images provide data to document what is happening, and some solutions that have been developed to combat the problem.