Archive for the ‘Experiments’ Category

Magic Snow

Posted by admin under Experiments, General, Questions

What is Magic Snow?

Magic snow is an absorbent polymer that is safe and non-toxic, it has the ability to expand up to 40 times its original volume. The snow starts out as a simple powder that looks similar to sugar or salt. The magic happens when water or other liquid is introduced to the magic snow, which quickly expands to absorb the liquid.

How is it Used?

Hollywood uses it for special effects, many people use it to decorate for parties, and thanks to its low price you can use
magic snow for fun. When using magic snow, use it on a dish, bowl, cup, test tube, or anything else that will help you contain the magic snow. First place the magic snow into the container of your choosing, next sprinkle a small amount of magic snow into the container. Then add a small amount of water and watch it grow. Use more in the following trials once an idea of the amount the magic snow expands is gained.

Example


magic snow


Do not let magic snow into drains or pipes; it will expand causing them to clog. The best way to dispose of magic snow absorbent material is to put it in a plastic bag and then in the trash. Do not rinse the container you use for magic snow creation in the sink, even a little can cause clog. However if you do accidentally clog a drain, a small amount of bleach will clear the drain.

In a previous post on warblettes, we conducted a small experiment demonstrating the absorption characteristics of warblettes.   There is a small summary below that you can use as a refresher, or you can view the actual warblette experiment.

warblette

Warblettes Lab Activity

As mentioned in the previous post, warblettes are co-polymers that absorb up to 200 times their volume in water.  Warblettes are perfect for science fair experiments, in the classroom, or just as a fun activity for your family. Warblettes, which are sometimes referred to as water marbles, are non-toxic and come in clear, red, blue, green, and yellow colors.

The basic absorption experiment we posted on warblette absorption is a simple experiment that uses household objects.  Warblettes can be used for much deeper science and educational learning.  Heath Scientific has created a lab manual for this purpose.

Warblette Activity Book

The warblette lab activity book has activities for every age student. There are 13 activities ranging from math and graphing to cellular biology. You can use warblettes to demonstrate potential and kinetic energy, change over time (graphing), man-made and natural polymers, and light refraction. The labs include explanations and procedures. If needed, modify the activities to fit your students abilities or needs.

The Labs Cover:

1.) Calculating Volume – Math
2.) Observation Skills
3.) Polymers and Water Absorbtion
4.) Absorption of Household Liquids
5.) Water Absorption and Time
6.) Water Absorption and Temperature
7.) Advanced Measurement – Volume, Calipers, Averaging, and Reading Charts
8.) Graphing – Line Graph
9.) Potential Energy – Comparing Diameter to Rolling Distance
10.) Varying the Height of an Inclined Plane
11.) The Effects of Acidity on Water Absorbtion
12.) Light Refraction
13.) Density

Both the warblettes and the lab activity book are available at Heath Scientific, which has been providing educational supplies for over 20 years.

Warblettes are co-polymers that can absorb up to 200 times their volume in water. The warblettes water marbles are perfect for science fair experiments, in the classroom, or just as a fun activity for your family. These water marbles are non-toxic and come in clear, red, blue, green, and yellow. Heath Scientific offers a warblettes lab activity book that includes 13 activities that focus on different subjects like math, graphing, and cellular biology, perfect for science fair projects and classroom experiments. The procedures for running each experiment are explained and the labs can be modified to meet your specific needs.

Enough about the details lets take a look at the Warblettes in action!! As mentioned they are able to absorb 200 times their volume in water. Our experiment compares the warblette, aluminum foil from a chewing gum package,  and a piece of paper towel. This will show the differing amounts of absorption between the water marble and these other household items.

warblette-materials

First the paper towell, foil, and the warblette were placed in water bottle caps, then each cap was filled with water.  (Note that we are using bottle caps as they are easily accessible in the home.  If you wish to measure liquid absorbtion in milliliters, a beaker or test tube will need to be used).  The items were left alone for 8 hours allowing them to absorb as much water as possible.

warblette-absorbtion

The picture below shows all of the items after 8 hours of absorption time. As you can see the aluminum foil absorbed no water, which was expected as metal is a virtually non-absorbent material. The paper towel absorbed a little more than half of the water in the cap. Paper towels are designed to clean up spills so it makes sense that this would be the case. Finally the warblette absorbed all of the water available in the cap, we even filled it a second time and it absorbed this too! The warblettes actually lock the water away so that they are not wet to the touch like the paper towel is.

warblette-final

Here is a picture of the warblette before the introduction of any water, as you can see it is very small in comparison to a dime.

warblette-size

This is the warblette at the end of the experiment; note the drastic size change after the absorption of water.

warblette-final-size

Warblettes have superior absorbent properties when compared with the aluminum foil and paper towel. This is an example of an easy and fun experiment that can be done with simple household items. The lab activity book offers more challenging experiments that are better suited for science fairs and classroom experiments. To find more experiments like these visit Heath Scientific, a family owned and operated company, which has been providing teachers, parents and students with educational supplies for more than 20 years. They offer warblettes and many other science supplies, science fair kits, and other fascinating products.

This post takes a look at the Hydro-Splitter Kit offered by Heath Scientific. The Hydro-Splitter Kit is a science fair project for kids that educates them about electricity and the electrolysis of water.

Other projects similar to the Hydro-Splitter are also available from the Heath Scientific website. The website offers science supplies as well as other science projects cover a wide range of topics from carbon to light and optics kits. These kits offer a cost effective way for parents to enrich their children’s minds while having fun at the same time.

General Information

Water is made up of twice as many hydrogen molecules as oxygen molecules; this is why the chemical formula is H2O. Electricity breaks this formula down when introduced into water. The molecules split with hydrogen appearing Hydro Splitter Kitat the cathode and the oxygen will mix with one hydrogen molecule making hydroxide.

Supplies Needed

- 1 Beaker
- 2 Carbon Rod Electrodes
- 1 Acid/Base Indicator
- 3 Alligator Clip Wires
- Salt
- 2 Droppers
- 9 Volt Battery- not included in the Hydro-Splitter Kit

Experiment Procedure

The carbon rod electrodes are connected to the battery with the alligator clip wires. Fill the beaker with 200 milliliters of water along with 25 drops of acid/base indicator and a pinch of salt. Adding a second 9 Volt battery can increase the speed of the reaction.

Results

There will be more hydrogen molecules than oxygen in the water and the electrode that the hydrogen is drawn to will have more bubbles. The water around this electrode will be blue; the water around the other electrode where the oxygen is drawn will be pink. This kit allows for a cost effective way to explain the concepts of electricity and voltage.

Founded by Pat and Heath Nichols, Heath Scientific is a provider of educational supplies located in Cedar Hill, Texas. Major suppliers of Heath Scientific include AntWorks, Thames & Kosmos, Uncle Milton, and Can You Imagine. If you are interested in hosting a school fundraiser, or obtaining science related educational tools, contact Heath Nichols at Heath Scientific by email at heath@heathscientific.net or by phone at (972) 291-4223.

Volume Density Experiment

This is an overview of a density experiment provided by Heath Scientific.

The Dynamic Density Kit is a density experiment used to teach children how to measure volume and introduce the concept of density in an easy and fun experiment.

Density is the amount of mass an object has per unit volume at a specific pressure and temperature. In determining density, it is necessary to calculate mass and volume as well. Mass is the amount of matter in a particular object. It is measured in grams. Volume is the amount of space an object occupies.

 Volume is measured by determining how much water an object displaces.

To determine density, mass is divided by volume. Since the purpose of the density experiment is to determine the density of different metals, the experiment will require determining the mass and volume of several objects and using simple arithmetic to determine density. This requires the child to measure the volume as well as the mass of certain objects.

 

Supplies

The density experiment is completed using the following supplies that can also be found as a package in the Heath Scientific Volume Density Kit.

• A spring scale

• A 50 milliliter graduated cylinder

• 4 different types metal balls with hooks

• String

• Paperclip

• Pipet

     

The graduated cylinder is used to measure volume for water as well as the different metal balls. Each line on the cylinder is the equivalent of 1 milliliter. If the water level lies between to lines, simply estimate the decimal place.

The spring scale can be hung from a ring stand or simply held in the hand. The scale measures in both newtons and grams. Since the density experiment requires mass to be determined, grams will be the measurement used. As with the graduated cylinder, if the reading falls between two lines, it is acceptable to estimate the value.

Experiment Procedure

The density experiment is conducted by filling the graduated cylinder with water, using the pipet to ensure the correct amount is in the cylinder. Each metal ball is lowered with the string into the water so the child can easily measure volume. The ball is removed from the water and weighed on the spring scale to calculate the mass. This measurement is combined with the value of volume using the formulas given during the overview. The density experiment is repeated for each metal ball to determine the density of each different metal.

This density experiment allows homeschooling parents to easily explain the concepts of mass, density, and volume without a large investment. Additionally, children are shown how to measure volume and use simple arithmetic to calculate the answer to relatively simple scientific questions.

Science project kits such as the density experiment are available from Heath Scientific’s website. These science projects cover a wide range of topics from volume and density to electricity. They offer a relatively inexpensive way for home schooling parents to enhance their child’s education. Additionally, they offer an easy way for parents to improve their home school curriculum as well take an active role in their child’s education by working the experiments alongside their child.