Jocelyn wants to see if water, milk, or vinegar will heat the fastest when placed on the stove. She puts one cup of each liquid in a sauce pan and turns the heat on low. Using a thermometer, she records the temperatures for each liquid after two minutes on the stove. What is the CONSTANT(stays the same for all three liquids)?

Reggie scraped both his knees when he fell on his bike. He decided to put ointment and a band-aid on one knee and just a band-aid on the other knee(no ointment) to see which knee will heal faster. What is the DEPENDENT VARIABLE?

Isobel brings three plants to work and tests which one will grow the fastest. She places one plant next to a window, one plant near the door, and one plant in a closet. She gives each plant a cup of water every morning. What is the INDEPENDENT VARIABLE?

Rachel is trying to lose 20 pounds 9 before the summer. This month she will try the “Lose It Now” diet. Next month she will try “Shedding the Pounds”. At the end of two months, she will see which diet helped her lose more weight. What is the DEPENDENT VARIABLE?

Robert wonders if the color of light will affect plant growth. He places one plant under a blue light and one plant under a green light. At the end of the week, he measures each plant to see how tall it is. What is the INDEPENDENT VARIABLE?

Amari decides to test four brands of gum to see which will lose its flavor the fastest. She chews each brand for thirty minutes and then rates how much flavor it still has on a scale of 1 to 10. What is the CONSTANT?

Peter and his friends decide to have a paper airplane contest. The person whose airplane flies the farthest will win the other airplanes. Peter makes his airplane and then adds paper clips to the wings and body of the plane. What is the DEPENDENT VARIABLE?

Fiona wants to see if diet soft drinks will freeze faster than regular soft drinks. She pours 8 oz. of each drink into a glass and places them in the freezer. She checks the drinks every hour and then records her findings. What is the INDEPENDENT VARIABLE?

Lucy wonders which diaper will absorb the most liquid. She buys three brands of diapers; Hugs, Lovies, and a generic brand. She then pours 6 oz. of water into each diaper. What is the CONSTANT?

Brad’s teacher wanted to see if music had an affect on a student’s ability to read. He gave each student a passage to read. Then, he let half of the class listen to classical music while they read. The other half of the class didn’t listen to any music. Then, he gave them a quiz on what they read. What is the CONSTANT?

Bailey has lots of dirty socks from playing outside. He decides to test his mother’s detergents to see which will get the stains out the best. He divides his socks into three piles and washes each pile in a different laundry detergent. What is the INDEPENDENT VARIABLE?

For her science fair project, Portia decides to test the density of 6 oz. of coke, pure water, and milk. She places a small ball in all three liquids to see if it will sink or float. What is the CONSTANT?

Brent is testing three fertilizers and their affect on plant growth. He gives each plant the same amount of fertilizer, water, and sunlight. What is the INDEPENDENT VARIABLE?

Juan wants to see if new shoes will affect how high he jumps. He measures how high he jumps in his old shoes and then measures his jump with his new shoes. What is the DEPENDENT VARIABLE?

Marcie is trying a new cookie recipe. She wants to see if the amount of baking powder she uses will make the cookies rise more. She makes three batches of cookies and changes the amount of baking powder for each batch. What is the DEPENDENT VARIABLE?