There were 139 third- through fifth-graders who competed in the final day of the Flathead County Science Fair March 11 at the Flathead County Fairgrounds.

Here are the results:

Demonstration  

Gwen Jarvis, third grade, Glacier Gateway Elementary, “Poor Pluto.”

Delaney Hutcheson, fourth grade, Glacier Gateway Elementary, “Worm Composting.”

Physical Science

Third grade

Grand Medals: Daniel Wilkenson, Glacier Gateway Elementary, “Magnet Power.”

Reserve Medals: Siri Erickson, Glacier Gateway Elementary, “Air Pollution.”

Fourth Grade

Grand Medals: Mason Fauth, West Valley School, “Heavy Sledding;” Ellie Hawes, Kalispell Montessori, “Hot or Not;” Samuel Ells, West Valley School, “Blizzard Wizard;” Colter Harris, home school, “Flying Far;” Lucy Lowry, West Valley School, “Kick Smarter not Harder.”

Reserve Medals: Zachary Lovering, Glacier Gateway Elementary, “Erosion Explosion;” Braeden Miller, Whitefish Christian Academy, “The Rules of Rust;” Kamber Brown and Isabelle Marcus, Deer Park School, “Ice Melts.”

Fifth Grade

Grand Medals: Jessie Rusche, Glacier Gateway Elementary, “Keepin’ Warm;” Sophie Burrough, Whitefish Christian Academy, “Is That Bacteria Really Living in My Yogurt?” Kyleigh Bradshaw, Bigfork School, “The Best Cup to Sell your Hot Chocolate in;” Braden Anderson, Bigfork School, “Which Hull Type is the Most Efficient?” Aiden Jarvis, Glacier Gateway Elementary, “Friction.”

Reserve Medals: Sam Manaker, St. Matthew’s School, “Building and Breaking Bridges;” Ryan Frampton, Whitefish Christian Academy, “The Spinning Coil;” Allie Jellison, Bigfork School, “Sweet Sugar,” Gabriel Adams, Stillwater Christian School, “Speed Under Pressure;” Ella Hutcheson, “What Cleans Up Oil?”

Biological Science

Third grade

Grand Medals: Elizabeth and Emma Cummings, Kalispell Montessori, “Dirty Days.”

Reserve Medal: Sydney Mann, Glacier Gateway Elementary, “How Does a Chick Breathe Inside its Shell?"

Fourth Grade

Grand Medals: Julia Martin, Ruder Elementary; Benjamin Rainford, Whitefish Christian Academy, “Apple Browning.”

Reserve Medals: Lexus Wilson, Ruder Elementary; Cheyanne Johnston, Glacier Gateway Elementary, “Gluten Free and Delicious?”

Fifth Grade

Grand Medals: Emily Cleveland, West Valley School, “Do Your Eyes Have It?” Jack Alton, Whitefish Christian Academy, “Do You Hear What I Hear?” Dante Iffert, Stillwater Christian School, “Dissolved Oxygen, Temperature, Water Quality and Their Effects on Living Organisms in Water,” Hailey Timlick, West Valley School, “Rising Sweetly.”

Reserve Medals: Makenna Hartle, West Valley School, “Hydroponics vs. Soil,” Harriett Grantz, Whitefish Christian Academy, “Memory, Musicians and Non-Musicians;” Winslow Nickols, Glacier Gateway Elementary, “What Wood is Good?” Lucy Takeuchi, Bigfork School, “Is Butter Better?”