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[Book Cover]

National Educational Technology Standards for Students Curriculum Series

Science Units for Grades 9–12

Randy L. Bell and Joe Garofalo, Editors

Online Supplement

Science Units for Grades 9–12 is a book full of ideas for integrating computer technologies into the secondary science curriculum, to help students better understand basic concepts in biology, chemistry, earth science, and physics. Naturally, every unit of the book recommends that science teachers take advantage of the wealth of information, simulations, and data available on the Internet. Since URLs are lengthy and cumbersome to type into a Web browser, we have created this site to provide readers with direct links to Internet resources recommended in the book. This site also provides links to Excel, PowerPoint, and image files used and referenced in specific activity descriptions; click on these links to download the files. All resources are listed below according to the chapter and section in which they are recommended.

Introduction

Section 2: Resource Units

Theme 1: Biology

 

Dissecting Virtual Frogs

General

  • Net Frog, Mable Kinzie, Curry School of Education, University of Virginia
    An excellent site for providing an overall introduction to both the content and procedures involved in frog dissections. Uses multimedia resources, including video recordings of dissections.
    http://curry.edschool.virginia.edu/go/frog/
  • Froguts, Inc.
    This site is for a commercial product but provides a free demo version of their Flash format simulations. Highly interactive environment for students, and very useful for learning the steps involved in frog dissection.
    http://www.froguts.com/
  • Virtual Frog Dissection Quiz, About.com, About, Inc.
    This site offers a brief multiple-choice quiz about frog anatomy that can function as a review for students completing the dissection unit.
    http://biology.about.com/library/weekly/aa102600a.htm?once=true&
  • Science: Alternatives to Dissection, Guidelines and Resources, VA Department of Education
    A page of the Virginia Department of Education that offers many links to resources on the dissection of frogs and other organisms.
    http://www.pen.k12.va.us/VDOE/Instruction/dissectionalternatives.html

Using Simulations to Explore Principles of Heredity

General

These Web sites offer breeding simulations as well as other scientific simulations.

Blood Typing

The following Web sites are suggested sources for information on blood typing that students can use as they prepare their presentations on Days 3 and 4 of the unit.

Eye Color

The following Web sites are suggested sources for information on eye color that students can use as they prepare their presentations on Days 3 and 4 of the unit.

Sex-Linked Traits

The following Web sites are suggested sources for information on sex-linked traits that students can use as they prepare their presentations on Days 3 and 4 of the unit.

Human Genetic Disorders

The following Web sites are suggested sources for information on human genetic disorders that students can use as they prepare their presentations on Days 3 and 4 of the unit.

Lesson Extenders

Science

Links to Web sites for the Science lesson extenders include the following:

Social Studies

Links to Web sites for the Social Studies lesson extenders include the following:

Nature of Science

Links to Web sites for the Nature of Science lesson extenders include the following:

Assessment Problem Set

These problems can be assigned for additional practice or included in a test. For each word problem, students should draw a Punnett square and explain their answer.

Monohybrid Crosses

  1. In mice, a long tail is dominant and a short tail is recessive. Draw a Punnett Square showing the cross of a mouse that is hybrid and has a long tail with a mouse that has a short tail. Summarize the genotypes and phenotypes of the possible offspring.
  2. In pea plants, big seeds (S) are dominant to small seeds (s). In a genetic cross of two plants that are heterozygous for the seed shape trait, what fraction of the offspring should have big seeds?
  3. Dark-colored feathers (F) in a duck are dominant to light-colored feathers (f). If 60 ducks were raised from a cross between individuals that were heterozygous for their feather color, how many would be expected to have light-colored feathers?
  4. A house plant with dark green leaves is crossed with the same type of house plant, but this one has light green leaves. The cross produces 185 house plants with dark green leaves. Summarize the genotypes and phenotypes of the offspring that would be produced by crossing two of the house plants with dark green leaves obtained from the initial parent plants.
  5. Mendel found that crossing wrinkle-seeded plants with pure round-seeded plants produced only round-seeded plants. What genotypic and phenotypic ratios can be expected from a cross of a wrinkle-seeded plant and a plant heterozygous for this trait?

Dihybrid Crosses

  1. In a dihybrid cross, AaBb x AaBb, what fraction of the offspring will be homozygous for both recessive traits?
  2. Which of the following genetic crosses would be predicted to give a phenotypic ratio of 9:3:3:1? Draw a Punnett square for each and explain your answer.
    1. SSYY x ssyy
    2. SsYy x SsYy
    3. SSyy x ssYY
  3. In horses, long tails are dominant to short tails and bowlegs are recessive. A horse that is heterozygous for both traits is crossed with another horse that is heterozygous for both traits.
    1. Show the genotypes of the two parents.
    2. Draw a Punnett square showing the resulting offspring.
    3. Show the ratios of the resulting phenotypes, use fractions.
  4. In dogs, dark (B) coat is dominant to light (b), and solid color (S) is dominant to spotted (s). A male dog with the genotype of bbSs is mated to a female whose genotype is BbSs.
    1. What are the phenotypes of the two parents?
    2. Show a Punnett square for this cross, and list the expected phenotypic ratios for the offspring.
  5. Suppose you have two eagles. Assume that dark-colored feathers (F) are dominant to light-colored feathers and the desire to hunt (H) is dominant to the desire to scavenge. A male eagle that is homozygous dominant for both traits mates with a female eagle that is homozygous recessive for both traits.
    1. What will be the genotype of the first generation of children (F1 generation)?
    2. What will be the phenotype of the F1 generation?
    3. What will be the genotypic and phenotypic ratios of the second generation of children (F2 generation)?

Animating Cell Mitosis and Meiosis

Cell Theory

Cell Cycle/Diseases

Mitosis

Meiosis

Cell Quizzes

Activity 2: Mitosis

To help students visualize each stage of cell division, you may want to use the excellent images found on the following Web sites:

Activity 3: Meiosis

To facilitate your discussion with the class about meiosis, you may want to use images found on the following Web sites:

Lesson Extenders

Science

Have students explore current research associated with cellular biology. Potential topics include stem cell research, diseases, and cloning. Good websites include

Social Studies

Students can use the Internet to further explore cell theory and the scientists who have played a key role in its development. Examples of these scientists include Theodor Schwann, Matthias Schleiden, Robert Hooke, and Rudolf Virchow. Good websites on the topic include

Using Digital Cameras to Survey and Classify Natural Habitats

Biodiversity Survey Techniques

Habitats

Wildflower and Tree Identification

Theme 2: Chemistry

 

Analyzing Trends in the Periodic Table

Periodic Table Sites

Periodic Table Database

Activity 1: The History of the Periodic Table

Activity 2: Mini-Mendeleev

Activity 3: Collecting Data for Periodic Trend Analysis: Atomic Radii

Understanding and Applying the Law of Conservation of Matter

General Chemistry

Activity 1: Balancing Chemical Equations: Introduction

Activity 2: Balancing Chemical Equations: Strategies

Activity 3: Exploring Chemical Reactions

Web resources for chemical reactions your students may research:

Using Chime Simulations to Visualize Molecules

From Tech Tip on Using the Chime Plug-in

Activity 2: Element Representations

Probing Newton's Law of Cooling

General

Theme 3: Earth Science

Discovering Tidal Patterns

Tidal Database

Tides

Moon Phases

Activity 2: Correlating Tides With Moon Phases

Activity 4: Explaining the Tides

Lesson Extenders

Analyzing Climatic Conditions Around the Globe

World Atlases

World Climate Database

Assessment

Finding Reasons for the Seasons

Freeware Planetarium Programs

Commercial Planetarium Software

Seasons

Misconceptions in Astronomy

Lesson Extenders

Investigating Patterns in Seismic Activity

General

  • United States Geological Survey (USGS) National Earthquake Information Center Web site
    http://neic.usgs.gov/

Richter Scale

Earthquake Data

Plate Tectonics, the Cause of Earthquakes

Earthquake Damage Images

Activity 1: The Effect of Earthquakes

Activity 2: Earthquake Patterns

Lesson Extender

Assessment

Graphing Mystery Bottles

General

Exploring the Doppler Effect

Introductory Sound Concepts

Doppler Effect and Applications

Activity 1: Investigating the Doppler Effect

Activity 3: Observing the Jet Cloudburst

Activity 4: Explaining the Jet Cloudburst

Simulating Uniform and Freefall Motion with Parametric Equations

General

Studying Projectile Motion

General
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