National Youth Science Day

4-H National Youth Science Day

 

Biofuels Blast

Overview: Participants will be introduced to biofuels through a hands-on demonstration of how organic materials can be converted to fuel to supply energy. Participants will test corn syrup and other alternative fuel options including sawdust and sorghum. They will discuss the best biofuel based on their experiment outcomes.

Objectives:

  1. Participants will understand that yeast can break down sugars through a process called fermentation, releasing carbon dioxide gas and ethanol (which can be used as a biofuel).
  2. Participants will learn that sugar in corn and other cellulose plants from fields can be converted into biofuels.
  3. Participants will engage in a discussion about alternative energies and the need to develop new technologies to decreease our dependence on fossil fuels.
  4. Participants will get the chance to build their experimental design skills and understand how scientists test and compare.

Grade(s): 3-8

Time: 45-60 minutes

 

4-H20

Overview: A hands-on demonstration of how carbon dioxide builds up in the atmosphere. They will learn how increased carbon dioxide levels due to human action have led to global warmng, which could raise the Earth's temperature. Participants will add BTB to water and observe what happens. Then they will blow into the mixture and observe the results. Participants will also learn how to calculate carbon footprints for their family.

Objectives:

  1. Participants will engage in a discussion about water quality and global climate change
  2. Through experimentation, participants will learn about the effect of CO2 levels on water quality.
  3. Participants will calculate the amount of CO2 a family contributes to the atmosphere to better understand the human impact of the carbon footprint.
  4. Participants will understand the key characteristics used to observe water quality, such as color, odor, aquatic plants and animals.
  5. Participants will understand the impact CO2 and nutrient runoff on the over-growth of algae in lakes, leading to changes in water quality.

Grade(s): 3-8

Time: 45-60 minutes

 

Wired For Wind

Overview: Participants will explore how to engineer renewable energy technologies and the positive impact that they can have in communities across the country and the world. Participants will design and build 2 typles of wind turbines and test them to determine which design is more effective in harnessing wind. They will experiment with different blade pitch angles and work to identify the best location for a wind farm in Indiana.

Objectives:

  1. Participants will be introduced to the engineering design process and its associated terminology by applying it to common wind energy challenges.
  2. Participants will understand the purpose of a wind turbine, it parts and mechanisms and how it works to convert wind power into electricity.
  3. Participants will use physics and formulas to calculate wind power.
  4. Participants will employ critical thinking skills to identify appropriate locations for wind farms using physical, environmental and social factors.

Grade(s): 3-8

Time: 60-90 minutes

  

*Fore more information, or to schedule a class session, you may contact Kelly Scher at kscher@purdue.edu or call the Extension office at (765) 456-2313. Office hourse are Monday through Friday, 8am to 4pm.

By Paul G Marcellino, County Extension Director
The Educational Store