The elementary school student wanted to see which of the video games he played would raise his heart rate the most.

Two teens wanted to find a way to keep their older, newly minted driver siblings safer on the road. An elementary school student tested an idea she hoped would keep her baby sister safer.

All across the county, students are putting their hypothesis to the tests with their science fair projects.

Most want to answer questions from every day life, such as which method of cooking an egg will make the shell come off easily, or figure out how to make lives better or more safe, such as figuring out what to use to melt ice on roads.

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Here is a peek at some students’ science fair projects underway across the county.

Money v. Power

Name of scientist: Landon Lewis

Grade: 4th

School: Northeast Elementary School

Project: To test different batteries to see if the most expensive batteries put out the most power.

Method: Built battery operated cars and mounted a charged battery to the top and raced them down a track to see which would win.

How he got the idea: His mother wanted to know if buying the most expensive batteries was worth it.

The result: The most expensive batteries won the car race.

Beast Mode

Name of scientist: Vincent Martinez

Grade: 4th

School: Northeast Elementary School

Project: To see which video games affect the gamer’s heart rate the most.

Method: He and each family member played a different type of video game while Martinez measured the heart rate of the members playing the game.

How he got the idea: He likes video games and wanted to see how each one affected his heart rate.

The result: Video games did raise players’ heart rates, with high stress games raising the heart rate the most.

No Baby

Name of scientist: Scarlett Palma

Grade: 5th

School: Northeast Elementary School

Project: To create a baby door alarm so a parent or baby sitter could be notified when a child left a room.

Method: Built an alarm that is tripped by a switch when a door is opened.

How she got the idea: She has 2-yard-old twin sisters, one is mischievous and she wanted a way she and her mother could be informed when the mischievous sister left the room.

The result: The alarm worked and could be used.

Imperfect Eggs

Name of scientist: Luke Strickland

Grade: 6th

School: Center Grove Middle School Central

Project: To test different egg cooking methods to see which one would make for an egg where the shell would most easily come off without damaging the egg.

Method: Cooked eggs four different ways, by dropping eggs directly into boiling water, dropping them in water that was cold and then boiled with the eggs in them, steaming the eggs and baking the eggs.

How he got the idea: He watched his mother cook eggs and sometimes when she peeled them, the eggs would be damaged.

The result: Steaming made the best egg for taking the shell off with the least amount of damage.

What is keeping you from your precious WiFi?

Name of scientists: Katie Adams and Emmy Gonzales

Grade: 7th

School: Center Grove Middle School Central

Project: To see the best place to put a WiFi router in a home, and what possible materials in front of the router would block the signal.

Method: Put router behind clothes, tiles, leather, mirror, bricks, insulation, wood and a human to see which of those materials blocked the internet signal the most.

How they got the idea:  The teens sometimes had trouble accessing a strong WiFi signal in their bedrooms and wanted to know why.

The result: A human in front of the router caused the biggest disruption to service. The duo originally thought leather would cause the biggest disruption to service.

Watch for Ice on Bridges

Name of scientists: Amanda Swartz and Collin Taylor

Grade: 8th

School: Center Grove Middle School Central

Project: To see the affect of copper based concrete on ice on bridges.

Method: Poured copper based concrete in a trough on top of heat wires and drove remote control cars on top of it.

How they got the idea: Both have siblings that are new drivers and they wanted to find a way to keep them safer on the road.

The result: Copper based asphalt on a bridge could be heated from below to melt the ice and give cars more traction.

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Magen Kritsch is an editorial assistant at the Daily Journal. She can be reached at mkritsch@dailyjournal.net or 317-736-2770.