Scientific Investigation

Which is the manipulated variable?

• Dependent Variables
• Constant Variable
• Control Variable
• Independent Variable

What is the dependent variable?

• Temperature
• Sugar and Salt
• Amount of solute
• Amount of water

A student wanted to see which color board reflects more light.  They test this by taking the temperature of the board. The board that reflects the most light will have the lowest temperature.  They use 2 white boards, one with light and one without & 2 black boards, one with light and one without.
What is the control variable?

• The color of the board
• The amount of light reflected
• The boards with light
• The boards with no light

What is the volume of the ring?

• 4.7 mL
• 1.7 mL
• 3 mL
• 12.7 mL

What percent of Iodine is left after 24 days?

• 50%
• 6.25%
• 12.5%
• 3.13%

What is independent variable?

• The distance from North and South Lake
• The Temperature
• The summer
• South Lake

What is the mass?

• 336.8 g
• 336 g
• 337 g
• 363.8 g

What is the dependent variable?

• Amount of each trash
• Type of trash
• Where the trash is located
• When the trash was picked up

What was the highest temperature in August of 2011?

• 83 degrees
• 80 degrees
• 79 degrees
• 75 degress

Find the density.

• 10 g/cm3
• 100 g/cm3
• 5 g/cm3
• 0.20 g/cm3