Fourth graders participate in a class disucssion on the term "habitat". The class brainstorms on what makes a national park special. In small groups, they research a a national park and create a mural depicting those factors that make...

In this cold quiz worksheet, students complete a six question multiple choice on-line interactive quiz about cold places and cold weather.

In this online interactive vocabulary skills activity, students answer 10 fill in the blank questions regarding aerospace industry-related words. Students may submit their answers to be scored.

In this biologically important molecules worksheet, students fill in the blank with information about carbohydrates, lipids, and proteins. Students also make notes about nucleic acids.

In this grammar worksheet, learners add -ing to the verbs in eight sentences. For example, "The dolphins were swim...and play...in the ocean."

High schoolers experiment with the relationship between pressure, force, and area. They determine the force and pressure exerted by a LC-130, which is commonly used for cargo and personnel transport in Antarctica.

In this English worksheet, students read " Arctic Ice May Disappear in a Decade," and then respond to 1 essay, 47 fill in the blank, 7 short answer, 20 matching, and 10 true or false questions about the selection.

Students collect, interpret and analyze weather variable data. They describe atmospheric variables that affect evaporation. Students create graphs and analyze the information collected.

In this environment and animals worksheet, 7th graders match ten pictures with their actual titles, answer seven statements as true and false, and discuss six questions together.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will describe the structure and polarity of a water molecule. They will also describe the hydrogen bonding that occurs in...

[Free Registration/Login may be required to access all resource tools.] Covers structure of water molecule, hydrogen bonding on water, polarity of water molecule, and bond angles of water molecule.

[Free Registration/Login may be required to access all resource tools.] Describes the three states of water.

[Free Registration/Login may be required to access all resource tools.] Describes the three states of matter of water.

[Free Registration/Login may be required to access all resource tools.] Students look at the chemical structure of water and learn how it determines water's properties.

Learners develop their own water molecule model to help them understand the idea that water has a slight positive charge at one end of the molecule and a slight negative charge at the other.

Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, therefore creating an unequal sharing of electrons. From fish in frozen lakes to ice floating...

[Free Registration/Login may be required to access all resource tools.] Covers the structure and properties of water.

This lesson will provide an understanding of the chemical and physical nature of water. It is 3 of 4 in the series titled "The Properties of Water."

This lesson will provide an understanding of the chemical and physical nature of water. It is 4 of 4 in the series titled "The Properties of Water."

This lesson will provide an understanding of the chemical and physical nature of water. It is 1 of 4 in the series titled "The Properties of Water."

Students observe and investigate why water has a strong surface tension.

[Free Registration/Login may be required to access all resource tools.] Covers the structure and properties of water.

Ever wonder why solid ice floats in liquid water? In this video lecture you will explore the special properties of water. Learn "the science behind how hydrogen bonds keep the ice in your glass (and the polar ice caps) afloat". At the...

Activity 2 investigates How Hot Can Water Get? In Activity 2 students analyze the relationship between energy changes and phrase changes as they discuss what happens when water boils. Bonus reading includes Why is Temperature Constant...