Official Event Description: A is for Animal Anatomy

A is for Animal Anatomy


This event will consist of a written test in which the contestants will view models, slides, and pictures to identify organs from the following animal body systems. Both structure and function will be tested in a series of written questions. 

  1. Skeletal 

  2. Digestive

  3. Respiratory

  4. Circulatory

  5. Nervous

  6. Sensory

The Competition

Every team will be given an answer sheet. Team members may consult with each other by writing (no talking). Only one answer for each question will be accepted. Team members will move through 20 stations answering approximately 40 questions.  

Questions will be at the stations or in a test booklet.

Number of Students


30 minutes 


On-Line Resources







At the end of the testing period, the questions and answer sheet will be collected from those teams who have not turned in their responses. Time is not a factor in scoring. 



2019 A is for Animal Anatomy chart.jpg

 Click here to download a printed copy of the A is for Animal Anatomy Event Description.

Official Event Description: Food Webs … Owl Pellets

Food Webs … Owl Pellets

An Online Submission Event


The event will generally follow the rules described in the Elementary Science Olympiad rules manual with the exception that all observations and conclusions will be made prior to the Science Olympiad tournament and submitted online. The written test described in the rules manual may not be included or may be a part of the online submissions.

2019 Event Details

NOTE: Teams are expected to obtain at least five (5) owl pellets from a commercial source.

Owl pellets should be dissected individually and observations recorded independently for each pellet. Observations and conclusions reported online may include:

  • Description of the owl pellet(s) prior to dissection.

  • Identification of bone(s) found in the owl pellet.

  • Submission of one or more photos of individual bones.

  • Number of prey species found in each pellet and evidence for that conclusion.

  • Identification of prey species found in each pellet and evidence for the claim.

  • Conclusions regarding food webs and habitats of the owl that produced the pellets.

  • Student ideas regarding ecological considerations related to owl habitats.

Number of Students

Up to 15


All necessary materials are provided by the school/team.

Online Submission Deadlines

Monday, December 10, 2018

On or before this date, students will submit observations, identifications, conclusions and evidence for their ideas, in response to directions and questions posted online.

Friday, January 11, 2019

On or before this date, students will respond to an additional question(s) regarding owl habitats, owl food webs and ecological considerations related to owl habitats.

Online Submission Link

Specific instructions for submitting responses will be shared to help students be prepared to submit online. A link to submit responses will be included and be posted online at

Scoring priorities include

  • Careful observation and dissection of the owl pellets

  • Identification of bones and owl prey species

  • Reasonable conclusions regarding owl feeding habits and ecological habitat implications.

  • Supporting claims with reasonable evidence.

 Click here to download a printed copy of the Food Webs … Owl Pellets Event Description.

Click here to download a detailed description of Food Webs Online Submission Details.

Official Event Description: Bottle Biology

Bottle Biology

An Online Submission Event


Students will construct a device that will house decomposing leaf litter ora living plant terrarium from 2-liter soda bottles.  Once started, the bottle is left alone and the students’ record their observations, and draw conclusions.  Scoring is based on students’ research, observations, data collection and conclusions.


Two different Bottle Experiments

A team may select one type of experiment:

  1. The Soda Bottle Decomposition Column is a miniature compost pile, or as leaf litter on a forest floor. Through the sides of the bottle you can observe different substances decompose and explore how moisture, air, temperature and light affect the process.

  2. The Soda Bottle Terrarium is an experiment to observe plants in a closed environment; and while it is growing you can observe the life cycle of plants.

Number of Students

Minimum two but the whole team may participate.


The teams will construct a Soda Bottle Decomposition Column or a Soda Bottle Terrarium with help from adults.

 On-Line Resources

Teams will submit one entry only

Students will submit their research and observations on-line.   Photographs are required at each deadline. Late submissions are allowed but 5 points will be deducted from the score.


  • Research: 5 points

  • Pictures:  5 points

  • Construction of the device: 10 points

  • Organized presentation of the observations and data: 20 points

  • Conclusion with evidence and reasons: 30 points

Submission Dates

 October 17, 2018
A link will be provided to a Google Form that includes:

  • Intent to participate

  • Which one of the two experiments the team is going to observe 

  • Why the team selected the type of experiment (decomposition or terrarium)

  • Identify the start date of the project.

  • Photo of the team starting the project.

November 2, 2018 
A link will be provided to a Google Form that includes:

  • Research

  • Pictures of the device

  • First week observations.

December 3, 2018
A link will be provided to a Google Form that includes:

  • Observations made during the period from the start of the experiment to Dec. 3rd.

  • Organized data collection 

  • Pictures of the soda bottle.

January 11, 2019
 A link will be provided to a Google Form that includes:

  • Any additional data collected and  final observations

  • Conclusion

  • Pictures

  • Suggested improvement to your experiment

Bottle Biology email address:
NOTE: This email address is for sending photos and videos only.  Do not submit questions to this address.

If you have questions please contact the LA County Science Olympiad at this email

 Click here to download a printed copy of the Bottle Biology Event Description.

Official Event Description: Watch It/Write It

Watch It/Write It


Watch It/Write It requires a team of students to observe some phenomena presented by the event supervisor and then describe the phenomena and their ideas about the phenomena using words, drawings, diagrams, labels, etc. Watch It/Write It emphasizes observation, communication and developing and using models.

Students should be prepared to observe carefully and develop a written model to represent their observations. 

Number of Students

Up to 2

Approximate Time

30 minutes


Paper will be provided. Students must bring sharpened pencils or pens and may bring colored pencils or pens.


The Watch It/Write It challenge is designed to require students to observe carefully and describe their observations in words, pictures, diagrams, etc. The written description presents a model of the phenomena as well as the students’ ideas about what is going on and why. Students’ preparation might include making a variety of observations of natural or man-made phenomena and describing the ideas in writing.

Examples of phenomena might include: 

  • Observe the operation of toys or simple science experiments.

  • Observe phenomena multiple times to check for missed observations.

  • Practice describing the steps of a process in words, diagrams, pictures, etc.

  • Practice ways to represent forces or unseen parts of a phenomena with words, symbols, etc.

  • Practice explaining ideas about observations and why some phenomena is happening.


Scoring is based on the ability of the students to observe carefully and represent their observations in a written model that describes their observations clearly and describes their ideas about the phenomena, including evidence they have for their ideas.

Preparation Tips

Background Information

A significant focus of the Next Generation Science Standards NGSS) indicates that science education should be more authentic to the way science and engineering are practiced in the real world – intentionally including Science and Engineering Practices, Disciplinary Core Ideas, and Cross-Cutting Practices. 

Two significant Science and Engineering Practices for upper elementary students include developing and using models, and supporting ideas/arguments with evidence. A quick look at a few of the Performance Expectations for upper elementary grades reveals frequent use of language like, “Develop and/or use models to describe and/or predict phenomena,” or “Develop a diagram to describe or explain a process.” Models need not be 3-D constructions, but are often drawings, labeled diagrams, sequence frames (like cartoons) that show relationship or change over time, etc.

The event Watch It/Write It is designed to provide students with an opportunity to engage in these fundamental Science and Engineering Practices. 

How to Prepare

The phenomena students’ will observe will not be shared prior to the Science Olympiad. The event includes the ability of the students to react to a potentially new experience with careful observations, reasonable ideas supported by evidence, and clear written communication in words, diagrams, drawings, etc.

Provide the students with things to observe and describe. Provide practice writing and drawing to describe the observations and ideas. Resources include science activity books from the library that include hands-on things to do and observe. Here are some examples to illustrate using phenomena to prepare for this event. 

Iron Filings and a “Mystery” Iron Rod

The phenomena to observe might be sprinkling iron filings on a piece of glass and then placing a metal rod and or disk (magnets) under the glass near the iron filings in different orientations and arrangements. Students then represent what they have observed and discuss their ideas about what might be going on. The best work will clearly and reasonably summarize the observations and include an explanation of what the students think might be going on.

 Soap Boats

Another example would be to take a shallow tray of water, like a pie pan or cookie sheet. Cut out an oval- or boat-shaped disk of cardstock with a slit or “v” shape cut into the back end. Cut a tiny sliver of soap and edge it into the slit or “v” shape. Place the boat into the water and observe what happens. Try different types of soap. Try liquid soap or dishwashing liquid. Does the type of soap change the phenomena? Does the phenomenon stop working after a period of time? Describe the observations and ideas with words, diagrams, drawings, cartoon sequences, etc. The best work will include clear communication, employ the models to explain ideas, and include some evidence or rationale for the ideas. Note that the ideas need not be correct. First ideas are often naive or lack sophistication. A keystone value of representing observations and ideas with models is that they can be revised as new experience is encountered. 

Related Next Generation Science Standards Links

Science and Engineering Practices

 California NGSS

Conceptual Shifts

 Click here to download a printed copy of the Watch It/Write It event description