Lab Report Density Name: Period: Problem How do you calculate Density? What units did you use for volume‚ mass‚ and density? When the cubes are placed in water which one will sink 1st? What is the ranking of the cubes lightest (1) to heaviest (10)? Is it true that the cube with the most mass will have the most density? Hypothesis I think the 1st cube was aluminum I think the 2nd cube was steel I think the 3rd cube was brass I think the 4th cube was copper I think the 5th
Premium Density Volume
add epinephrine‚ then the heart rate will increase. MATERIALS AND METHODS A pipet was used to place the Daphnia with water on a glass slide. The slide was then placed under a glass microscope to be observed for the experiment. A tally counter was used to count the heart rates of the Daphnia when it was placed in warm water‚ under ice and in epinephrine. RESULTS When we experimented what the effect temperature has on the Daphnia’s heart rate‚ we started with an average control of 64 beats in 15
Premium Hypothesis Epinephrine Heart rate
The temperature of water was determined by a thermometer. 1 cm stripped ends of the wires was hooked into the input posts on the back of the impendence converter. Lab tutor module was started after. B. Baseline heart rate The top of the container was covered with foil and the animal was allowed to sit quietly for 10 min. The trace was examined by pressing
Premium Blood Heart Artery
Double-sided tape Permanent marker Distilled water Graduated cylinder 3 petri dishes Lab spoons 3 beakers Sodium chloride 3 pipettes 3 grids Procedures: Day 1 Gather and prepare 3 petri dishes. Label each grid with the different percentage of salt in each solution (0.5%‚ 1.0%‚ 1.5%). Measure and cut 1 inch of one-sided tape. Stick the one sided tape on the side of the grid onto the back of a petri dish; repeat this for the other 2 petri dishes. Use the graduated cylinder and collect
Premium Water Laboratory glassware Petri dish
and enzyme concentration have on the rate catalase works to break down hydrogen peroxide. If the pH‚ temperature‚ or enzyme concentration changes‚ then the reaction rate of catalase will either speed up or slow down. III. Materials and Procedures Materials needed include 1 molar HCl solution‚ 1 molar NaOH solution‚ 6 test tubes‚ measuring pipette‚ 10ml graduated cylinder‚ 40 ml 3% hydrogen peroxide solution‚ straightedged razor blade‚ scissors‚ forceps‚ stirring rod‚ fresh liver‚ fresh apple‚ fresh potato‚ test tube holders
Premium
Zach Sexton December 4‚ 2014 Bot 121 Lab Coleus Lab Report 1. A cutting can form an entire new plant if cutting being used has a meristem. If the cutting has no meristem‚ mitosis will not occur and you will end up with a dead piece of plant material. In order to successfully grow a new plant through a cutting‚ your plant must have adventitious root growth which in order to deliver water and nutrients to the plant. Adventitious roots are created through cell potency where cells differentiate. The
Premium Plant propagation Plant Seed
Lalin Candium Lab Report Chemistry Block H Mr. Neil Chipman Calculating the Atomic Mass for Different Candium Isotopes Objective: In this experiment I will be discovering the atomic weight of Candium isotopes. By doing this experiment‚ it helps us to know how to calculate the relative abundance and atomic mass of each Candium isotopes without having to use the spectrometer. This lab will achieve my understanding of isotopes and why it has different masses but same number of protons due
Premium Chemistry Chemical element Water
Lab Report Procedure 6.1: Perform Benedict’s test for reducing sugars. Introduction: Benedict’s tests allows for the detection of the presence of reducing sugars. All monosaccharides are reducing sugars since all of them have active carbonyl group. Some disaccharides that are exposed to a carbonyl group are also reducing sugars but less reactive than monosaccharides. By mixing the sugar solution with Benedict’s solution and heating them‚ a redox reaction will occur. The copper (II) sulphate
Free Glucose Carbohydrate Sucrose
find the identity two unknown bacteria in the given test tube. Materials •Bacterial Loop •Bunsen Burner • Petri Dish with agar •Crystal Violet •Gram’s Iodine •95% Ethanol •Safrin •Glass Slides •Microscope •Unknown bacteria in test tube Procedure On the first day‚ one plate was streaked qualitatively and left it in the 25 degrees celsius incubator over five days and attempted to gram stain from the test tube. On
Premium
Separation of the Components of a Mixture General Chemistry 1 (Chem 101)‚ ISP SCUHS Report 2 January 26‚ 2014 Abstract The analyses of mixture were to distinguish and identify homogeneous mixture by using the techniques of decantation and sublimation. By performing these techniques‚ we examined our solutions such as SiO2 (sand)‚ NH4Cl (ammonium chloride)‚ and NaCl (sodium chloride) and mixed H2O (water) with each solution after being heated. After examining our solutions‚ we made calculations
Premium Mixture Separation process Liquid