Webquesting Math in Science

Webquest: Measuring in Science

http://www.epa.gov/region03/ee/chesapeake/labident.htm

Answer the question by identifying the equipment.
Type the name of equipment and copy the picture and paste on this word document.
1. 2. 3.

4. 5. 6.

7. 8. 9.

10.

Numbers:Measures, shape and space
http://www.bbc.co.uk/skillswise/numbers/measuring/

Click on Temperature
Read different thermometers and understand the difference between Celsius and Fahrenheit.
    Click on the fact sheet
        Read through each of the facts
        Type one new fact you read;
        Fact Sheet 1

Fact Sheet 2

Fact Sheet 3

Fact Sheet 4

Fact Sheet 5

        then click on the worksheet (type out your answers on this paper).
        check your answer
        Worksheet 1.

Worksheet 2.

Worksheet 3.

Worksheet 4.

Worksheet 5

        Worksheet 6
        then click on the quiz. (type out the questions and your answers on this paper) (you might find that some of the answer, you won't be able to copy, skip those)
        1.

10.

On the Skillwise page, CLICK ON THE HEADING at the top of the page You are in numbers/measurement, shape, space

Click on Volume
Find out more about calculating volume and measuring space.
Click on the fact sheet
Read through each of the facts Type one new fact you read;
Fact Sheet 1

Fact Sheet 2

Fact Sheet 3

Fact Sheet 4

then click on the worksheet (type out the questions and your answers on this paper). check your answer
Worksheet 1.

Worksheet 2.

Worksheet 3

Then click on the quiz. (type out the questions and your answers on this paper) (you might find that some of the answer, you won't be able to copy,do them mentally, and write the questions out and you will out your answer as complete)
1.

10.

CLICK ON THE HEADING at the top of the page You are in numbers/measurement, shape, space

Length, weight and capacity
How to measure all three and read scales.
   Click on the fact sheet
        Read through each of the facts
        Type one new fact you read;
      Fact Sheet 1

Fact Sheet 2

Fact Sheet 3

Fact Sheet 4

Fact Sheet 5

Fact Sheet 6

then click on the worksheet (type out the questions and your answers on this paper). check your answer
worksheet 1.

worksheet 2.

worksheet 3.

worksheet 4.

worksheet 5

worksheet 6

worksheet 7

worksheet 8

worksheet 9

worksheet 10

then click on the quiz. (type out the questions and your your answers on this paper) (you might find that some of the answer, you won't be able to copy, do them mentally, and write the questions out and you will out your answer as complete)
1.

10.

Math Skills Review
Significant Figures

http://www.chem.tamu.edu/class/fyp/mathrev/mr-sigfg.html

1. Read about exact and inexact numbers.

2. Look at the dart boards.
In your own words what is the difference between accurate and precision?

What word does your textbook use instead of precision in this case?

3. Look at the examples of significant figures for the beaks and the graduated cylinder

4. Read the rules for significant figures. Then answer the following questions

a. When is a zero not a significant number? Give an example

b. How does scientific notation help you with knowing what to do with zeros? (http://www.nyu.edu/pages/mathmol/textbook/scinot.html)

c. For multiplication or division, the answer contains no more significant figures than the ______ accurately known number

5. Read through the steps in the box.

Are you ready to take a test on significant figures??
Try the following applet to see if you know your sig figs

http://lectureonline.cl.msu.edu/~mmp/applist/sigfig/sig.htm

How did you do? What was your score? ________________

A REVIEW ON MASS, VOLUME and DENSITY
http://www.nyu.edu/pages/mathmol/textbook/middle_home.html

Click on Mass
What tool is used to measure mass?

What kinds of tools are there to measure mass?

   Practice reading the triple beam balance. Write your information below
        Problem 1
        . The mass of the object is:

    Click on the "please continue to Part II" arrow button
      Problem 2:
             A block having the same dimensions is now put on the scale. What is the mass of this object?

Problem 3:
If both objects were put on the scale at the same time their total mass would be =

Continue by clicking on the arrow button for volume
Case I:
The volume of an object can be calculated using mathematical equations. The volume of a cube can be found using the formula V=(side)x(side)x(side)

What is the volume of the metal cube shown here?

The side of the cube is approximately 3.1 centimeters. How many inches does this convert to?

Case II: (watch the movie, and make sure you are following the instruction on the webpage)
What will happen when we lower the above metal block slowly into a graduated cylinder containing water?

What was the amount of water displaced by the object?

After filling in the boxes on the webquest answer this question:
How does the volume of a cube vary with the area of one of its surfaces? With the length of one side of the cube?

Click on Density

Read about density
Use the formula for the following BLOCKS
formula, measurements given with their units and then write the solution with the correct units.

BLOCK I

BLOCK II

Check your answer by typing in your solution

What is the substance of each block? (click here)

BLOCK I ________________________

BLOCK II _________________________

The Density Dilemma:
The Case of the Missing Crown
In this activity imagine that you are living in Syracuse in the Bronze Age, circa 250 BC (2,259 years ago!). You have been summoned by the king of your land, His Majesty Hiero II, to help in a very important matter. King Hiero has commissioned some goldsmiths to make for him a wreath crown of pure gold. Five goldsmiths brought to him five identical crowns. Hiero has hired you because he has heard rumors that only one of the five crowns is in fact pure gold! The other four might have been made of different metals! It is up to you to scientifically find which crown is the pure gold crown. Since the crown is a holy object you are not to disturb it in any way. How will you do it? Remember to choose the correct crown because the other four goldsmiths might very well lose their heads!

1. Complete the data table that organizes the following data about the 5 crowns in your notebook. Give your data table a title.

- a. all of the crowns are identical and have a volume of 180 cm³

- b. the 5 crowns have the following different masses

1943 g, 515 g, 1440 g, 3474 g, and 2467 g.

2. Be certain that your chart contains complete headings for each column. Include the unit of measurement for mass, volume, and density.

3. Examine the chart "Density of Common Substances." .

4. complete the chart and answer the questions

Crown #	mass (g)	volume (cm³)	density (g/cm³)
1
2
3
4
5

5. Calculate the density for each crown using the formula: Density equals mass divided by volume. Record the density for each crown in the chart.

Crown 1

Crown 2

Crown 3

Crown 4

Crown 5

QUESTIONS:
1. You have just calculated the density of each of the 5 crowns. Refer to the chart "Density of Common Substances" and explain why the property of density is valuable in the identification of a substance.

2. Using the evidence from your density calculations, and the chart "Density of Common Substances", identify the crown made of pure gold.

3. Refer to the density of each of the four remaining crowns. Predict what substance each is made of. Refer to the chart "Density of Common Substances" to explain your predictions.

4. Formulate a hypothesis as to how you think the fake crowns were made to look like the crown of pure gold. Devise a test to test your hypothesis.