Take the fine soil from the bottom pan of the sieve set, place it into a beaker and add 125mL of the dispersing agent. Stir the mixture until the soil is thoroughly wet. Let the soil soak for at least ten minutes. 2. While the soil is soaking, add dispersing agent into the control cylinder (Sodium Hexametaphosphate 125ml) and fill it with water to the mark.
· Broth culture of E. coli · Tubes of sterile nutrient broth · Inoculating loop · Bunsen burner · disinfectant Procedure 1. Disinfect the work surface by spraying it down with a disinfectant and then wipe with paper towel 2. Light Bunsen burner 3. Sterilize inoculating loop by holding it over the flame of the Bunsen burner until the tip becomes bright red. 4.
• I cleaned baby’s front with baby wipe and let the baby’s skin air dry for a few moments. • I applied rash cream (or powder). • I removed the dirty nappy and set it aside, out of baby’s reach. • I tidied the clean nappy under baby’s bottom, pulled the front half of the clean dipper up to baby’s tummy. • I checked if the dipper between baby’s legs is spread as wide as seems comfortable.
Pull the front of the pamper up out keep it laying flat. Carefully unfold flaps on the old pamper. take about 2 wipes , and carefully wipe the baby's area until clean. Place the wipes in the front part of the old pamper. Lift baby bottom up.
When the liquid above the precipitate was clear, the solution was tested for completeness of precipitation when a few drops of BaCl2 solution were added from a pipette. Next, filter paper was place into the funnel and streamed with distilled water. A clean 400mL beaker is placed under the funnel and the precipitate was filtered through. When all the precipitate was filtered and removed from the beaker the residue is washed with distilled water. About 3mL of the wash water is collected in a small test tube.
6- Place only the edge of the Q-tip at the top the Flame. 7- Remove it when you see the of light being given off to avoid burning the Q-tip. 8- Clean up procedure: Discard used Q-tips to the bin, cover back compounds and put them up in a safe place, pour away distilled water in the sink, disconnect the Bunsen burner and clean it if stained,clean the lab test surroundings with paper towel to ensure no stain is left, wash your hands remove your goggles only when all equipments have been placed in safe places. Compound | Flame Colour Observation | 1 LiNO3
Rubbing your hands together helps in the removal of microorganisms and other germs from the surface of your skin. Next, rinse your hands by placing them under the warm water, holding your hands lower than your elbows allowing the water to remove all soap from your hands, being careful not to touch the sink. Keeping your hands lower than the elbow will allow all soap and germs to flow off your hands easily rather than flow up the arm. Remember, the sink can be contaminated and have germs on it, so avoid touching it and re-infecting your hands. Finally, dry your hands with a paper towel thoroughly and use the paper towel to turn off the faucet before you throw it away.
Then, fill the bucket with water and mix with one ounce of soap per gallon of water. After filling the bucket, spray down the entire car once with the hose, then scrub the car down with the soapy and rinse as you go. As soon as you’re done with that, you need to use a dry towel to dry of the wet car, before the sun dries it and leaves water spots. The next step is to wax the vehicle. It’s best to do this in the shade.
Shake or blow any loose grains off the tablet. 3) Go to the balance. Make sure the pan of the balance is dry. If not, gently wipe it dry with a paper towel. Make sure the balance also reads 0.00 g. If not tare the balance prior to massing.
How to Change a Baby’s Diaper Changing a baby’s diaper can be easy with all the right materials close by. First you will need to get a clean diaper, wipes, diaper cream, diaper changing mat, gloves, and a small plastic bag. Secondly, you will need to get the child and lay that child down on the changing mat, pull down the child’s pants and undo the diaper tabs on the front of the diaper. After you have finished that task, you will take the wipes and wipe down the area with the wipes until clean. Then, take the clean diaper and lift the child’s bottom up to put the back of the diaper underneath and between the child’s legs to cover the child’s private areas.