Red Cabbage Juice Makes an Egg White Turn Green

Red Cabbage Juice Makes an Egg White Turn Green Red cabbage juice contains a natural pH indicator that changes color from purple to green under basic (alkaline) conditions. You can use this reaction to make a fried green egg. This a great chemistry project for St. Patricks Day (March 17th) or to make green eggs and ham for Dr. Seusss birthday (March 2nd). Or, you can just make green eggs to gross out your family. Its all good. Green Egg Materials You only need two basic ingredients for this easy food science project: eggred (purple) cabbage Prepare the Red Cabbage pH Indicator There are several ways you can prepare red cabbage juice for use as a pH indicator. Heres what I did: Coarsely chop about a half cup of red cabbage.Microwave the cabbage until it is soft. This took me about 4 minutes.Allow the cabbage to cool. You may wish to set it in a refrigerator to speed things up.Wrap the cabbage in a coffee filter or paper towel and squeeze the cabbage. Collect the juice in a cup.You can refrigerate or freeze leftover juice for later experiments. Fry a Green Egg Spray a pan with cooking spray. Heat the pan over medium-high heat.Crack an egg and separate the egg white from the yolk. Set the yolk aside.In a small bowl, mix the egg white with a small amount of red cabbage juice. Did you see the color change? If you mix the egg white and red cabbage juice thoroughly then the white of the fried egg will be uniformly green. If you only lightly mix the ingredients you will end up with a green egg that has white splotches. Yummy!Add the egg white mixture to the hot pan. Set the egg yolk in the middle of the egg. Fry it and eat it like you would any other egg. Note the cabbage does flavor the egg. Its not necessarily bad, just not what you expect eggs to taste like. How It Works The pigments in red cabbage are called anthocyanins. Anthocyanins change color in response to changes in acidity or pH. Red cabbage juice is purplish-red under acidic conditions, but changes to a blue-green color under alkaline conditions. Egg whites are alkaline (pH ~9) so when you mix the red cabbage juice into the egg white the pigment changes color. The pH does not change as the egg is cooked so the color is stable. Its also edible, so you can eat the fried green egg! Easy Blue Eggs Green isnt the only color you can get using edible pH indicators. Another option is to use butterfly pea flowers. Steeping the flowers in boiling water produces a deep, vivid blue that is safe to add to any food or drink. While red cabbage juice has a distinctive (some would say unpleasant) flavor, butterfly pea does not have a flavor. You can get a red cabbage at pretty much any grocery store, but youll probably have to go online to find butterfly pea flowers or tea. It is inexpensive and it lasts practically forever. To make blue eggs, simply prepare butterfly pea tea in advance. Mix in a few drops of the tea with the egg white to achieve the desired color. Cook the egg. You can drink or freeze any leftover tea. Butterfly pea flower, like red cabbage juice, contains anthocyanins. The color change is different though. Butterfly pea is blue under neutral to alkaline conditions. It turns purple in very dilute acid and hot pink when more acid is added. More Color Change Food Experiment with other edible pH indicators. Examples of foods that change color in response to pH include beets, blueberries, cherries, grape juice, radishes, and onion. You can choose an ingredient that complements the flavor of the food in just about any color you desire. In most cases, prepare a pH indicator by soaking finely minced plant matter in boiling water until the color is extracted. Pour off the liquid for later use. A handy way to save the liquid for later is to pour it into an ice cube tray and freeze it. For fruits and flowers, consider preparing a simple syrup. Mash or macerate the produce and heat it with sugar solution until it boils. The syrup may be used as-is or mixed in as an ingredient in recipes.

ACT Exact Start Time and End Time

ACT Exact Start Time and End Time SAT / ACT Prep Online Guides and Tips In addition to all your ACT studying, you need to prepare for test day. When exactly does the ACT start? What time will you hand in your scantron sheet, gather your arsenal of No. 2 pencils, and leave the test center? Is timing the same for all students, or does it vary by location? This guide will go over the exact start and end time of the ACT so you can plan your Saturday morning. Assuming you haven't arranged an alternative testing date or other accommodations, what time do you need to arrive? ACT Test Day: When Do You Need to Arrive? You must be in the test center by 8:00 am at the very latest. Test administrators are strict about denying entrance to latecomers. Since students are usually admitted at 7:45 am, you should really aim to arrive between 7:30 and 7:45 am. There's often a line of students waiting outside, so it's definitely a good idea to get there earlier than 7:45. You'll check in with your admission ticket and ID and find your room. Seats are assigned, but first you might have to store your bag and snacks somewhere outside of the testing room. Once everyone is checked in and seated, the proctor will pass out the test booklets and scantrons. She'll give you instructions about how to fill out your personal details and take the ACT. All of this takes about 30 minutes to an hour,depending on how many students there are and how long it takes everyone to get settled in. Although you'll arrive to the test center by 7:45, you'll actually start taking the ACT between 8:30 and 9:00.From the point you start in on your first English question, how long does the exam take? How Long Is the ACT? Added together, the four multiple-choice sections of the ACT (English,Math,Reading, andScience) take a total of two hours and 55 minutes. With the 40-minute optional Writing section, this time increases to threehours and 35 minutes. Here is an overview of the time you'll get on each ACT section (including breaks). I've also included exact start and end times (with the assumption that the test starts at 8:30 am). ACT Section Total Time Start Time End Time English 45 mins 8:30 am 9:15am Math 60 mins 9:15am 10:15am Break 10 mins 10:15am 10:25am Reading 35 mins 10:25am :00am Science 35 mins :00am :35am Break (some students leave) 5 mins :35am :40am Writing (optional) 40 mins :40am 12:20 pm TOTAL 3 hrs 5 mins (w/out Writing) 3 hrs 50 mins (w/ Writing) - - Besides the four sections, you'll get a 10-minute break. This break is always after Math and before Reading. If you're taking the ACT with Writing, you'll also get a five-minute break first. If not, this is when you'll hand in your test and leave the testing center. On rare occasions, some students might be asked to take an extra fifth section (lucky them). This section will come at the end of the test. Don't worry- it won't be scored. It's just used to test out material for future ACTs. The questions could be multiple choice or student-produced responses. In the past, this section has been just 16 minutes long. Typically, without this rare extra section, the ACT is threehours and five minutes or three hours and 50 minutes(with the Writing section and breaks). Apart from a slight variation in start time to get everyone checked in, though, are there any other differences in how long the test takes at different test centers? Are There Any Variations in the ACT Schedule? The ACT should be three hours and five minutes or three hours and 50 minutes across the board. Since it's a globally administered admissions test, test-taking conditions should be standard for all students. The only exception involves accommodations for extended time or Special Testing. Other slight variations in the ACT schedule might occur if a proctor isn't strict with break time, or if students take extra time to return to the test room. There could also be a delay if a proctor has to dismiss a student from the testing room, although she might wait until the test is over to deal with an issue so as not to interrupt everyone else. Generally speaking, everyone taking the ACT will get the same amount of time. Because of this, you can know what to expect for your Saturday morning schedule and when to arrange to be dropped off and picked up. When Will You Leave the ACT Testing Center? Students taking the ACT are generally dismissed around 12:15 pm, and those taking the ACT with Writing are dismissed around 1:15 pm. Beyond the test, it takes a few minutes for the proctors to collect everyone's tests and for the students to gather their belongings and leave. The proctor will dismiss everyone, and you'll be all done and free to go. The ACT is a time-intensive, pressure-packed test for most students. Besides arranging your pick-up and drop-off times and knowing what to expect, though, is there anything else you can do to prepare for ACT test day? How to Plan Your ACT Test Day Schedule The ACT is already stressful as it is- you don't want to add to your stress by running late or feeling clueless on test day. Instead, you should familiarize yourself with exactly what's coming and have a plan for those things that are in your control,such as your schedule. You don't want to be rushing and diving through doors just before they close. That would just distract you, create anxiety, and be no fun for anyone. Therefore, leave early and give yourself plenty of time to arrive at the test center by 7:30 am- 7:45 at the latest. Pack your bag the night before with everything you need, such as No. 2 pencils and an approved calculator. Go to bed early, and eat a nutritious breakfast that will fuel your test-taking for the next few hours. Bringing a snack and water for the break is a good idea, too. Don't underestimate the effects your physical state can have on your mental clarity! After all, who can focus on trigonometry problems when their stomach is rumbling for everyone to hear? Staying energized and hydrated, as well as taking advantage of your break time to move around out of your desk,will be refreshing and help you reset before diving into the challenging Reading section. Put simply, prepare yourself so the morning of your test goes as smoothly as possible. Bring everything you need and know your exact testing schedule. Then by 12:15 or 1:15 pm, you'll be all finished and ready to celebrate completing the ACT! What's Next? Do you feel pressed for time on the ACT? Are you worried about getting to all the questions? Learn our expert strategies for how to stop running out of time on ACT Reading andACT Math. Did you know that more recent ACT practice tests are better representations of what you'll get on test day, while the older ones are a little too easy? At least, that's what test experts say. Read here about whether or not the ACT has been getting harder in the past few years. Want to improve your ACT score by 4 points?We have the industry's leading ACT prep program. Built by Harvard grads and ACT full scorers, the program learns your strengths and weaknesses through advanced statistics, then customizes your prep program to you so you get the most effective prep possible. Check out our 5-day free trial today: