how to make a PH paper test strip?

Wanna make your own PH paper test strips for science experiment ? This is a variety of different types to try now！ 

You should know this :

1. Use only distilled water when preparing the pH paper test strips.
2. Use only acid-free "art" paper. There are a number of good inexpensive brands available.
3. Obtain an earthenware plate or dish. Fill with the chosen concoction that has been prepared using distilled water.
4. Immerse the paper into the dish carefully. Ensure that you wet the paper uniformly.
5. Allow to dry. It must dry in a place that has no acidic, ammonia or other vapors that might affect the paper and its ability to work.
6. Store paper that has been made in bottles jars or cases.
7. Select the concoction of choice from the following suggestions.

A. Cabbage Paper Test Strips

 

1. Make a strong infusion of red cabbage leaves.
2. Strain the infusion.
3. Allow it to evaporate with a gentle heat until it is considerably reduced.
4. Dip the paper in (as described above) and dry it in the air.
5. Note that the results will be:
   
   
   • Paper stripes of a grayish color
   • Alkalies change the paper to green; acids to red.
6. Be aware that this is a very delicate test.

http://youtu.be/eNrjtDGC0EA

B. Dahlia Paper Test Strips

 

1. Prepare an infusion from the petals of violet-dahlias.
2. Make this infusion in the same manner as the cabbage paper test strips above.
3. Note that the results will be the same as the cabbage paper.

C. Elderberry Paper Test Strips

1. Stain the paper with the juice of the berries. There is no need to add water to the juice.
2. Note that the results will be that the blue color is:
   
   
   • changed to red by acids.
   • changed to green by alkalies.

D. Blue Litmus Paper Test Strips

1. Bruise 1 ounce of litmus in a mortar.
2. Add boiling water to the litmus and pulverize together.
3. Put the mix into a flask and add boiling water to make up to half a pint.
4. Strain when cool and dip the paper in the resulting mix as per instructions above. More color may be extracted from the litmus by using hot water, but the liquid will need to be concentrated through evaporation.
5. Note that the acids will change the color to red, but it does not become green with alkalies.

E. Red Litmus Paper Test Strips

1. Follow the same instructions as for the blue litmus paper.
2. Add to the strained infusion a few drops of nitric acid, or of pure acetic acid. Pour a milliliter of diluted nitric acid (HNO3) into a test tube.
3. Test with litmus and watch for color change. Repeat with the cabbage juice paper. Repeat with the turmeric paper.
4. Note that an alkali will change the color to blue, but the red paper does not become pink when exposed to acids.

F. Rose Paper Test Strips

 

1. Make a strong infusion of the red rose petals.
2. Dip unsized paper in it.
3. Note that when this test paper is dipped in a weak alkaline solution, it will turn a bright green color.

G. Rhubarb Paper Test Strips

 

1. Dip the paper into a strong infusion of rhubarb and dry it.
2. Note that when the rhubarb paper is used, alkalis will turn it brown.

H. Starch Paper Test Strips

1. Place a starch paste on the paper. Cotton cord can be used instead of paper.
2. Note that this is used as a test for iodine, which turns it blue.

I. Turmeric Paper Test Strips

 

1. Boil 1 ounce of coarsely powdered turmeric root in half a pint of water for half an hour.
2. Strain.
3. Dip paper in the liquid and dry it.
4. Note that the paper will be turned brown by alkalis, and also by boracic acid and borates.

Warning:

• Handle the test strips with clean dry hands only.
• Handle any acids with great care and under supervision of a responsible person, such as a science teacher if you are doing a class project. Wear appropriate gear for handling any of the substances.
• Keep the prepared strips in a cool, dark, dry airtight container.

Things you will need:

• Distilled water
• Earthenware dish or plate
• Chosen vegetable or mineral matter
• Paper strips
• Clean, dry drying area
• It works best with red cabbage

 GREAT SCIENCE EXPERIMENT - Food Test - Indicator Strips - PH Solution：

 http://youtu.be/y7NEHxH5Ys0

 

Lemon juice is acidic and weakens paper. When paper is heated, the remaining acid turns the writing brown before discoloring the paper.
 
Steps:

1. Squeeze lemons to obtain their juice or obtain bottled lemon juice.
2. Use the juice as 'ink' by applying it to a stick or paintbrush and writing on paper.
3. Allow the paper to dry.
4. When you are ready to read your invisible message, hold the paper up to sunlight, a lightbulb (recommended), or other heat source.
5. The heat will cause the writing to darken to a pale brown, so your message can now be read.
6. Another way to read the message is to put salt on the drying 'ink'. After a minute, wipe the salt off and color over the paper with a wax crayon to reveal the message.     

Tips:

1. Experiment with other juices. White wine, orange juice, vinegar, and apple juice all work well, too.
2. A cotton swab makes an excellent disposable 'paintbrush'.
3. The writing turns brown because the weakened paper burns before the rest of the paper. Be careful not to overdo your heating and ignite the paper!  

 What you need:

1. Lemon or Lemon Juice
2. Sunlight or Heat Source
3. Paper
4. Paintbrush or Stick    

Video:

How to Make INVISIBLE INK!!!

http://youtu.be/KYNWB0h-waQ 

How to make the bubble solutions and glowing bubbles?

Homemade Bubble Solution



 Recipe 1: Best Homemade Bubbles

You'll need:

• 1 cup water
• 4 tablespoons dish washing liquid
• 2 tablespoons light karo syrup or 2 tablespoons glycerin

You can buy small amounts of glycerin at your local pharmacy or you can purchase it by-the-gallon online. Mix all the ingredients together and get making bubbles! Bubbles will immediately pop when they hit a dry surface. Enjoy long-lasting bubbles by refreshing your bubble wand often and by keeping your environment wet.

Recipe 2: Homemade Colored Bubbles

You'll need:

• 1 cup granulated soap or soap powder
• 1 quart warm water
• Liquid food coloring

Start by dissolving the soap in the warm water. Then, stir in the food coloring. Add in drops until you've attained your preferred color intensity. Distribute the colored solution to each bubble blower in a small can, cup or jar. Remember that food coloring can stain, so your participants' attire should be considered before you begin.



Recipe 3: Fancy Homemade Bubbles

You'll need:

• 1 cup of water
• 2 tablespoons of liquid detergent
• 1 tablespoon of glycerin
• 1 teaspoon of sugar

Mix together all the ingredients until the sugar is dissolved. Try using household items to create wild varieties of bubbles. Now that you have your homemade bubble solution mixed, select a suitable container for your bubble activities. Jars and cups work well for small bubble wands. Bowls, buckets and pales are good for medium sized wands. A tray or even a box lined with a garbage bag are ideal containers for the large-wand bubble activities.

Video:

3 Easy Homemade Bubble Solutions

http://youtu.be/OpZkg3A40DU

Materials to Make Glowing Bubbles

 

To do this, you will need:

• a soapy bubble solution
• glow in the dark solution 
• and a bubble wand

You can use different kinds of glow in the dark solutions. You can use washable glow paint, or you can make your own. It can sometimes be hard to find washable glow in the dark paint, so today I am going to be showing you how to make your own solution using a highlighter pen. A black light will be needed to see it glow in the dark.

How to Make Glowing Bubbles With a Highlighter

First, we are going to open the highlighter pen. Pull out the felt inside, and place it in a small amount of water. Let it soak for a couple of minutes. Remove the felt, and add a small amount of bubble solution in to the cup.
Next, turn on your black light.Using your bubble wand, start blow bubbles.
If you do chose to use glow in the dark paint, add a ratio of half water and half paint. These will glow in the dark immediately after being exposed to light.

Video:

How to Make Glowing Bubbles

http://youtu.be/3xYcn9_jmuM

How to dye your hair with lemon juice?

Want to lighten your hair or bring out highlights "naturally"? Want to look like a California girl with sun-kissed locks that shine when they hit the light?  It's easy !Simply follow the short instructions below for a head of beautiful and lighter hair.

Steps:

1.Combine lemon juice and water. Mix 1/4 cup of warm water with 1 cup of lemon juice, freshly squeezed. Combine this in a spray bottle.

 

2.For dry hair, combine lemon juice and hair conditioner. This may dry hair which is why hair conditioner is needed. Mix 1/4 cup of conditioner with 1 cup of lemon juice, freshly squeezed. You may want to whisk this mixture together in a small bowl and set aside.

3.Protect your skin with a layer of sunscreen. You're going to be "activating" the lightening effects of the citric acid in the sun, so you want to make sure that your skin is protected from harmful UVA and UVB rays.

4. Apply the lemon lightener to your hair. For full coverage, spray the mixture over all your hair and give it a few light brushes.

*If you're looking more for highlights, take a cotton ball soaked in the lemon mixture and slide it down the strands you want highlighted. Try to keep track of which strands were lightened, because the process takes a while and you'll have to reapply the lightener several times for it to take effect.

*If using the lemon conditioner mixture for dry hair, take a pastry brush or similar item and brush the hair you want lightened with the mixture. This mixture will have more body and be slicker than the lemon water mixture, so it will be harder to get highlights with it.

5.Find a comfortable spot outside in the sun . You will need to sit outside in direct sunlight for at least 60-90(1hour-1hr30min) minutes to begin seeing any color change.

 

6.Reapply the lemon juice after 90 minutes. Continue sitting in the sun for another 30 minutes.

7.Give your hair a deep conditioning when you're done lightening. Wash your hair, and then deep-condition with a generous amount of hair conditioner or another natural substance.

8. Give the process time to work. Don't expect to see sudden changes right away; lightening with lemon juice takes time! Expect the following color changes in 3 to 4 weeks:

o    Dark Brown to: Light Brown or Ecru

o    Light Brown to: Golden Blonde
o    Dark Blonde to: Light Blonde
o    Dark Red to: Dark Blonde
o    Light Red to: Light Brown / Blonde
o    Black: Won't show much change at all.

Tips:

1.  Continue this process on multiple days if you don't have much time the first sitting.

2.  If you apply the juice to only your natural highlights, you will get streaks. If you deeply  saturate your whole head, it will lighten the full color.

3.  Be patient! You will need to do this many times to get a big difference.

4.  Don't use bottled lemon juice.

Warning:

1.  Don't do this too often, since the sun can seriously damage your skin over time. Watch out for sunburn, it's easier to prevent a sunburn than treat it.

2.  This method may not be that effective if you have dark brown or black hair.

3.   Do not over use if you use more than one lemon a day, it may add a brassy, odd tint to your hair.

How to build a bottle rocket?

A bottle rocket can be fun and easy to make. Here’s how to build and launch a simple bottle rocket using things you find around the house. 


Things you will need:


2 bottles (two 2-liters bottles work great for a regular sized rocket, but if you want to build a mini-rocket, you can use a regular water bottle)  

 3 Fin material (thick card stock or thin cardboard would work well)  
duct tape (to hold together your rocket)
 
a pair of scissors

a weight

a cap with hole

a marker pen


 

 Rocket Launcher:

water and bicycle pump with needle valve

Steps:

1. Make a mark every 4.5IN on a bottle.

2. Cut the top off one of your bottles.

3. Tape the top onto the other bottle.

4. Align the fins on the marks.

5. Put a weight on a cap.

6. Put the cap on your bottle.

7. Add 1/4 liters of water.

8. Pump about 20 full pumps.

 Video from You Tube:
 http://www.youtube.com/watch?v=1t663D_gErg