USING+BLOOMS+EXPERIMENT+FORM+to++answer+a+question

= = BLOOM’S EXPERIMENT FORM DATE:17/9/07

SCIENTISTS IN THE GROUP:Blair and Callum QUESTION FOR INVESTIGATION:Is hair transparent, translucent or opaque? REMEMBERING: List the materials used in this experiment. blonde hair, brown hair and black hair, microscope, cello tape, paper, scissors, tweezers

UNDERSTANDING: Outline the procedure for conducting this experiment. Step 1-collect hair samples. tweezers to hold. We are cutting hair Step 2– observe under microscope Step 3-look for reflection absorption transmission Step 4- record observations APPLYING: Carry out your experiment and record your observations.

SAMPLE TRANSMITTING REFLECTING ABSORBING 1 GREY HAIR





2 BLACK HAIR





3 BLONDE HAIR







ANALYSING: Sum up your data….display it in a graph if possible...draw three conclusions from what you have discovered 1) Samples 1, 2 and 3 all reflected. 2) Sample 2 was the darkest so it seemed to absorb light. 3) Samples 1 and 3 were bright so they didn’t absorb light 4) Sample 1 transmitted probably because it reflected a lot of light.

EVALUATING: Describe how you would rate the success of your experiment...Was it a fair test...why/why not. I think that we performed a successful test because we agreed on everything. It was a fair test because we used the same amount of hair, we used the same microscope lens and we used the same light source.

CREATING: Create a series of “what if” statements about your data to show things that might be different should variables be changed. 1) What if people put wax in their hair? 2) What if people washed their hair more regularly than others? 3) What if they had used medication in their hair?