S U K I , M A R K , N I A R A , A N D LU I S

UNKNOWN SPECIMEN: IS IT ALIVE?

WHAT QUESTIONS DID THE EXPERIMENT ANSWER?

• Will the unknown grow?

• Will the unknown adapt to a significant change in environment?

• Does the unknown produce CO2?

• Is the unknown made of cells?

WILL THE UNKNOWN GROW? WILL IT ADAPT TO A SIGNIFICANT CHANGE IN

ENVIRONMENT?

• 2 test tubes• Salt water and Fresh Water

• Three Plastic Cups• Soil, Sand, Control

DOES THE UNKNOWN PRODUCE CO2?

• Bromothymol Blue• Water Color: changed from blue to a yellowish color

• Conclusion: It is producing CO2.

IS THE UNKNOWN MADE OF CELLS?

• Observed it under a microscope• Saw cell walls• Conclusion: It has cells.

RESULTS: WILL THE UNKNOWN GROW?

• Yes. In all new environments, the unknown did show growth and changes.

FRESHWATER TEST TUBE

• 1st Look: the some of the unknown had begun to sprout what appeared to be a root and the water had turned to a pale yellow, indicated the presence of carbon dioxide.

• 2nd Look: nearly all of the unknown had sprouted and the water’s shade had darkened.

SALTWATER TEST TUBE

-1st Look: the unknown had begun to sprout roots, although noticeably smaller than the freshwater sample. Also the water’s shade of yellow was not as dark as the freshwater sample. -2nd Look: the unknown’s roots had grown a little, more. Very few changes were noticeable.

WHAT TOOLS OTHER THAN THE MICROSCOPE DID YOU LEARN HOW TO USE?

• Wet Mount/Stain

• Bromothymol blue

OUR UNKNOWN IS ALIVE!

• It converts energy.• It emitted CO.

• It grows.• It sprouted in 3 of our environments

• It adapts to different environments.• It grew in the tap water, salt water, and the soil.

• It has cells. • We saw this through the microscope.

DID YOU LEARN ANY INFORMATION THAT HELPED YOU ANSWER YOUR QUESTION?

• CO₂ and the bromothymol blue.

• What do cells look like?• Did some research, found what plant cells and animals

cells look like.

WHAT QUESTIONS REMAIN UNANSWERED?

• What kind of plant is it?

• Will it reproduce?• Too short of a time to tell if it will reproduce, but we

hypothesize that it will.