effect of change in pH on the activity of the enzymes catalase. Equipment: Test tubes Test tube rack Pipettes Stopwatch Ruler Pen Safety goggles Gloves Materials: Liver pureed 3% of hydrogen peroxide (H2O2) with few drops of detergent Safety: Hydrogen peroxide is corrosive therefore you should wear gloves and safety goggles when handling it Table of Variables Dependent Independent Controlled Amount of bubbles produced pH of substrate Amount of
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• Wood glue • Paint (Any color to pain the house - Optional) • Paint brush (If painting the birdhouse) • Tape measure • Saw • Drill • Hammer • Eye hooks (A bolt with a loop at the end) • Rope • Pencil • Gloves – For protecting your hands • Eye goggles • Dowel (A peg of wood) • Sandpaper Instructions: 1. First‚ put on your gloves to protect your hands from getting any splinters‚ then put on your eye
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Adventures of Huckleberry Finn” society exemplifies religious hypocrisy. Twain speaks to the audience of religious southerners‚ like Miss Watson‚ who feel they know the Bible yet remain blind. Twain uses the archetype goggles‚ “Her sister‚ Miss Watson‚ a tolerable slim old maid‚ with goggles on” in the characterization of Miss Watson. This was to say she cannot see clearly and is oblivious to reality. With the irony of Miss Watson seemingly knowing all when it comes to religion‚ even though she is very
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his tips weren’t registering in my head. We reached the top of the ski-lift and I hopped off only to then fall on my face into the cold‚ hard snow. I stood up and time seemed to stand still as I watched the snow slowly fall down to earth. I put my goggles back on my face‚ strapped my feet into my board’s bindings and looked down the monstrous mountain. This was it and there was no turning back. My adrenaline was flowing through my body faster than a strike of lightening. I was terrified and amazed
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After you find the mass of each bean you need to find the relative mass of each bean. The navy bean will have the smallest relative mass. You will need to wear safety goggles and a lab apron and wash hands after the lab is finished. If you drop any beans pick them up immediately to prevent anyone from slipping. Materials Safety goggles navy beans Laboratory apron kidney beans Graduated cylinder‚ 50- or
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three quarters of the court! We had set up in the perfect defense‚ and were in position to intercept the ball. Time began to slow as the ball skimmed my teammates fingers‚ and landed perfectly in Tyler St. Germain’s--whom we mockingly referred to as “Goggles”--hand. Time was ticking‚ and he shot the ball towards the goal. Time slowed down as the ball hit the hoop‚ and teetered on the back of the rim for what seemed like a lifetime. The ball fell through the net. Game over. St. John defeated Ascension
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Safety Symbols These symbols warn of possible dangers in the laboratory and remind you to work carefully. Safety Goggles Wear safety goggles to protect your eyes in any activity involving chemicals‚ flames or heating‚ or glassware. Lab Apron Wear a laboratory apron to protect your skin and clothing from damage. Breakage Handle breakable materials‚ such as glassware‚ with care. Do not touch broken glassware. Fumes Work in a ventilated area when harmful vapors may be involved. Avoid inhaling vapors
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equipment and consumables needed for a basic electric arc welding setup are: * Welding machine * Electrode * Cables * Clamps * Metal to be welded Safety equipment * Heavy leather gloves * Long sleeve jacket * Welding goggles and helmet With the use of diagrams‚ explain a basic welding technique (like a butt or a fillet weld) The fillet weld is the most common weld.it is used 80% of the time in welded construction‚ whereas the butt weld is only used 15% of the time
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hydrochloric acid. Control: the amount of hydrochloric acid in each trial. Materials -The materials used in this experiment were test tubes‚ a beaker‚ a scale‚ goggles‚ stop watch‚ magnesium‚ and hydrochloric acid. Procedures -Before starting the lab you need to get the following materials: test tubes‚ a beaker‚ a scale‚ goggles‚ stop watch‚ magnesium‚ and hydrochloric acid. Weigh the empty individual test tubes. Step 1- put 1 gram of magnesium into a test tube. Step 2- add 10mL of hydrochloric
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Safety goggles were put on‚ hair was tied back and sleeves were rolled up. One cm of CuSO4·5H20 was added to a cleaned dried test tube. The test tube was heated until no furthered changes were observed. All observations were recorded then the substance was then
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