Make your own free website on

Exploring Life - Honors Biology Chapter 4 Chemical Basis of Life

When you click Submit (at the bottom of this web page) it will save your work on the server for me. If you get a "proxy error" hit -refresh- until you get a "Thanks"

You might want to actually write your answers in Word (so you can spell check them) and then cut-and-paste into the boxes. That way, if the computer misplaces your work you can just re-paste the answers.

Since we may work on this over more than one day, I will keep track of what you have done. Feel free to click submit as you work to save your work to the server. 

TAB OR USE THE MOUSE Between the fields....

Answer the questions as best you can. The boxes will expand as you type if you need more space. (Don't worry if it is a one word answer. The box size is standard.)

Since you will be working in groups, put all the names of the people in the group in the box. The ideal group size is 2. As an exception I will allow groups of 3. No groups of 4 or 5. If you work as a group of 3 I expect better answers. Group sizes above 3 will be penalized in the grading.

You can work on this from home once you have signed up for Successnet.

Name (s):


Class Period

1 2 3 4 5 6 7 8

Open the Explore Life CD in a separate window.   (If you need help with that ask.)

While there are questions on the CD, they provide answers, so I can't grade their questions. You will get a grade for the answers on this form!

Click on Chapter 4

-At any time you can refer back to the text via the menu on the side-

Start with Concept 4.1 The questions proceed with the disk. Do all the activities. Answer my questions.

Question 1: What is the difference between an element, a compound, a molecule and a mixture? Don't just copy the glossary definitions.

Question 2: How many protons, neutrons and electrons are in Oxygen, Sodium, Chlorine? 

-At any time you can refer back to the text via the menu on the side-

Question 3: Strontium has an atomic number of 38 and a mass of 88. How many protons, neutrons and electrons in the non-radioactive form of Strontium? Radioactive Strontium has a mass of 90. How many protons, neutrons and electrons in it?

Question 4: How many electrons are in the outer shell of Sodium? How many are in the outer shell of Chlorine? Describe the bond between sodium and chlorine in salt.

Question 5. How many electrons are in a covalent bond? How many are in a double covalent bond? (Think about hand shakes. How many hands are in a hand shake?)

Question 6 List and explain the 4 main properties of water. What common feature explains all of these special properties?

Question 7. What is a buffer?

If you have time you can go back through the CD for anything else you want to read more about.

This web page is being hosted at Dr. Gottfried's  Tripod account. Technical questions should be referred to