Siddharth Tirumala Mrs. Kiriazis IB1 Biology 22 August 2013 Diffusion Lab Write-Up Research Question: How does the temperature of the water affect the diffusion of food coloring? Hypothesis: Food coloring will dissolve faster as the temperature of the water increases. Variables: Name of Variable | What is it? | How is it measured? | Units | Range of the data | Independent | Temp. of Water | Thermometer | oC (Celsius) | | Dependent | Rate of diffusion of food coloring | Stopwatch
Premium Temperature Fahrenheit Boiling point
Gymnosperms Uses of Plants Example Angiosperm/Gymnosperm Food Rice Angiosperm Beverage Tea Angiosperm Medicine Aloe Vera Gymnosperm Fibers Paper Gymnosperm Materials Wood Gymnosperm Dyes Colorado Fir Gymnosperm 5. Review the introduction to Lab Topic 15 plant diversity 1 and describe the major trends in the evolution of land plants. The major trend is leaning toward the sporophyte dominating the life cycle‚ which means the gametophyte is decreasing. The reason why sporophyte might be dominating
Free Plant Pollen Pollination
What are the names of the species used in this experiment? Which of these species was the most tolerant of increased acidity in the aquarium? Which species was the least tolerant? The names of the species used in the experiment were clam‚ dragonfly‚ and side swimmer. The specie that was the most tolerant was the dragonfly and the least tolerant was the clam. Describe how acid precipitation affects ecosystems. Acid precipitation affects the ecosystem‚ for example‚ lowering ph in water when it
Premium Water Acid Acid rain
EXERCISE 3 PHYSICO-CHEMICAL REACTIONS IN THE CELL ACTIVITY SHEET BROWNIAN MOVEMENT: 1. What is Brownian movement? - 2. Is there a difference in the speed of movement among the different sized particles of India ink? If so‚ explain the difference. - 3. Is there a difference in the speed of movement of the India ink particles in hot and cool slides? If so‚ explain. - DISPERSION SYSTEMS IN PROTOPLASM 4. DEFINE THE FF: a. Solute: The dissolve matter in a solution; The component
Premium Liquid Solution
Title: studying organisms in an ecological habitat Aim: to determine the feeding relationships in an ecological habitat Method: * Explore ecological habitat * Make notes of features of selected habitat * Measure the seize of the area to be explored * Record the name of all organisms found in the habitat * Make note of any special features of the organisms * Note the presence of any symbiotic relations Observations and results: Tabulation of the organisms in habitat
Premium Food chain Trophic level Ecology
Observance of Artificial Selection: Technical Study of Wisconsin Fast Plants 5th and 6th period AP Biology Due: 12/16/13 Abstract This experiment was used to explore the Theory of Evolution created by Charles Darwin. The use of natural selection was apparent in the artificial modification of an organism ’s traits which aided in this investigation. Through this experiment the Wisconsin Fast Plant was used. It is a fast-growing organism developed to improve the resistance to disease in
Free Evolution Natural selection Seed
Cell Worksheet from Chaiken of Biology Cell wall cell membrane nucleus ribosome lysosome mitochondria cilia flagellum vacuoles chloroplasts 1. This organelle takes sunlight‚ water and carbon dioxide and can make organic food molecules and oxygen. Chloroplast 2. This organelle is constructed of cellulose and supports plant cells and prevents them from blowing up. Cellulos 3. This organelle contains enzymes for intracellular hydrolysis of food molecules. Lysosom 4. This organelle takes
Free Cell
Question 1 What are probable sources of acid precipitation in your community? What impact can this have on the environment in your region? Some of the probable sources of acid precipitation is Fog‚ and rain. During the summer it hardly rains which makes it hard for our crops to grow‚ also since we are in the valley it makes it hard for us to get the water that we need. During the fall it gets very foggy in the mornings and it makes it very difficult to see while your driving. Prevailing
Premium Acid rain Sulfuric acid Sulfur
perspective of a measurement could be different than the others‚ but the lab cannot be preformed solo. When it comes to improving the lab‚ there aren’t to many ways to ensure accurate measurements due to the fact that in any experiment there are human and environment variables that cannot be accounted for‚ or even prepared for. In any experiment there will always be human error. Group Lab Report The purpose of this lab is to use a variety of analytical skills and methods to determine the empirical
Premium Measurement Concentration Error
Bio Lab 1 Scientific Method Introduction The scientific method in action‚ designing and Performancing and experiment does thumb diameter‚ length or write diameter’s have an effect on the overall chance of winning a thumb wrestling match? In this investigation‚ we will develop a hypothesis based on physical data collected and test the hypothesis. Material Thumb‚ Ruler‚ Metric ruler Procedure 1. Measure the circumference of the thumb‚ in centimeters‚ at its widest point. Record this data in
Premium Scientific method Empiricism Science