Science research » Baking Soda

Science Project Idea for 4th Grade Student

admin — Thu, 13 May 2010 01:13:40 +0000

Here is a science project idea. Children in elementary school such as 4th through 6th grades would be able to do this as well as middles school 7th and 8th grade students. In this science project you will determine which substance has the most acid in it to clean tarnish off of coins.

Items you will need for the project:

8 cups 8 tarnished copper pennies Tomato juice Lemon juice Vinegar Window cleaner A household cleaner like simple green or fantastic Ammonia Toothpaste Baking soda Paper towels Graph paper

For this experiment you will determine from the constant, the tarnished copper penny, which of the liquids or materials removes tarnish the best.

Line up your glasses in a row on a counter top. Make sure you will not be using this space for something else. The best time to do this is in the evening so that you can let the pennies soak overnight.

Fill each cup with one of the ingredients. You should now have 8 cups with a different substance in each. You do not need more than about 1/8 cup of each ingredient. Just use enough for the penny to be submerged under the liquid. For the toothpaste squeeze a little out into the bottom of the cup and place the penny on the paste and then squeeze more on top of the coin.

For the baking soda mix a slight amount of water with the soda to form a paste and do the same as with the toothpaste making sure the bottom and top of the penny is covered with the substance.

Let these glasses of liquid sit overnight at room temperature.

In the morning place a paper towel in front of each cup. Remove each penny from the liquid it has been sitting in and gently rub and wipe the outside of the penny. Use a different paper towel for each coin.

After you are finished with all eight make a visual observation. What does each penny look like? Also look at the paper towel to determine which one has the most tarnish on the paper. Using your graph paper record each substance and make a bar graph showing how much tarnish each one removed.

When you started you should have made a hypothesis about which substance would remove tarnish the best and why it would remove the tarnish effectively. Was your theory correct?

This science project is great for middle school or high school. It can even be done by a younger student in 3rd or 4th grade. Make sure to have your parent help with the chemicals by pouring them into the glasses and disposing of them. You may want to wear gloves with the various chemicals.

Science project ideas can be found in your own home cabinet.

By: Lesa Bolt

Easy Science Project Idea For 8th Grade Student

admin — Sun, 25 Apr 2010 22:29:31 +0000

Lets check what ingredient will make water the most dense. We will use seven glasses and fill each with the same amount of water. Make sure the glasses are all the same size and kind. We want to be fair and test this accurately.

Lets get some ingredients:

Glasses Water Salt Sugar Powdered laundry detergent Baking Soda Flour Pepper Graph paper Egg Pen

Measure out and pour one cup of water into each glass. Now using a measuring spoon put 1 teaspoon of each of the above ingredients into a separate glass so that one container has water and pepper and the other cup has flour and so on. Each glass has a different ingredient. Stir each one well so that the ingredient dissolves. You may have to stir some longer than others to get it mixed consistently.

Take another glass and just fill with water.

For fun lets use eggs to test this. They are so useful for so many things. Put the egg into the glass with just water. The egg should sink to the bottom of the glass. Record this on your graph paper. You may want to list all the ingredients on the bottom of the graph paper.

Now remove the egg with a spoon and dry off with a paper towel. Lower the egg into the next glass and see what happens. Record if the egg went to the bottom, floated or was somewhere in the middle.

After each cup is experimented, remove the egg and rinse under water and dry off with a towel before proceeding to the next liquid combination.

What ingredient helped the egg float? This ingredient made the water the most dense. Now do the experiment again, but this time pout in 1 tablespoon of each ingredient and see if you have a different outcome.

This is fun to demonstrate at your next science fair.

By: Lesa Bolt

7 Easy School Science Projects

admin — Tue, 13 Apr 2010 10:13:09 +0000

Floating eggs

We all know that a fresh egg sinks in fresh water. Find out how much salt you need to add to the water to make the egg float instead.

Volcanoes

This is messier! OK, you can make a simple volcano using vinegar and baking powder and you’ve probably got the ingredients already. For a more realistic volcano, complete with gray ash, get hold of some ammonium dichromate, which burns fiercely and gives out sparks as well.

Make Slime

Take 7 tablespoons of milk and 1 tablespoon of vinegar. Let solids form and then filter them using kitchen towel or a coffee filter. Squeeze out the last of the liquid then use about 1/4 teaspoon of baking soda to bind the solids together. Enjoy your slime!

Levitation

At its simplest, just use two magnets. Use them to push each other apart. If you’ve got access to round magnets that look a bit like hoopla hoops, place them on a round pole and see how well they repel each other.

Rockets

You’ll need a 2 liter soft drink bottle and a pump (a foot pump is easiest but a bicycle pump will work as well). Almost fill the bottle with water. Pump in air until you get a launch. See how high or far you can send your rocket.

Growing Crystals

Boil 2 liters of water. Pour it into a jug, keep stirring and keep adding either salt or sugar until the water won’t hold any more (you’ll see some salt or sugar at the bottom of the jug that just refuses to dissolve). Decant this solution into a new jug. Pierce a hole in a sheet of card. Dangle a paperclip on a piece of string tied through the hole – the paper clip should be about 5cm from the bottom of the jar. See what crystals form on your string.

Make Lightning

This needs to be done in a dark room. Inflate some balloons. Rub them rapidly against a woolen sweater (do this at least 10 times). Hold the balloon near a metal object like a door handle and watch the sparks fly.

By: Carl Walker

Fifth Grade Science Fair Projects

admin — Thu, 04 Feb 2010 09:23:27 +0000

Fifth graders are slightly more mature in the primary level classes, but they still require a lot of guidance and assistance. They can understand better and they are not very restless. Fifth grade science fair projects should be such that it finishes in a fairly short span of time, preferably the week ends. Then, it will be interesting for this age group to learn by doing.

The fifth grade science fair projects should be such that most of it should be completed by the student itself. The students should know the skills like making measurement, observing, hypothesizing, collecting and analyzing the data, scientific drawing, graphing, problem solving, text and internet research, and note taking.

Of course, a little help can be taken from their parents. Evaluation of the fifth grade science fair project is a must and then only they will do the projects sincerely. Group projects can also be allotted to them, to improve their mingling with their age group and team spirit. While judging this project, care should be taken to award extra points for the students’ effort.

Fifth grade science fair projects can be made to know if plants can grow better in a polluted environment so that the people can grow food in polluted environment to save room on the earth.

Take two pots. Keep one pot with garden soil, plant bean seeds, in clean environment, pour tap water and keep it in a clean place to give a clean environment. The other pot can be filled with soil with little bit of trash, then plant bean seeds, and pour polluted water with little oil, and give a polluted environment by spraying chemicals in the air. Observe, after few days, the polluted plant grows faster.

Chemical Volcano eruption can be made as a fifth grade science fair project. The children should know the ratio of baking soda to vinegar.

Do colored light affect the seed growth? Project can be made with three pots of few seeds in each and place different colored lights, that is, the white, red and blue. The conclusion is the white light was the best because it is the combination of all the lights in the light spectrum which helps plants to grow faster. The red was medium and the blue was the shortest.

Making a food pyramid with the correct colors for health is an excellent fifth grade science fair project for this age group. They learn to eat the balanced diet. Orange for grains, green for vegetables, red for fruits, and blue for milk and dairy products, purple for meat, fish etc and yellow for oil and fats. This kind of project gives the student an awareness of their own health and the things they put in their body, and at an age where they start overeating with potato chips and other junk foods, this can be a very good for the student in more ways than one.

Milk carton traffic lights can be made to show the traffic safety as well as the concept of ‘Work out of Waste’. A song on traffic light will go well with it. It is twinkle, twinkle traffic light and add your imagination to it. Safety tips in traffic, safety tips in kitchen can also be shown effectively.

Some of the projects may need a research from the Internet. However, it should be kept in mind that not all internet sources are created equally. If you choose a project that is freely available to everyone, you must remember that there are hundreds of people doing every one of those same projects, and duplicity should be avoided whenever possible. However, because of their middle-school age, there are a lot of excellent options for projects in paid membership sites or in books available on Amazon. Find a good, trustworthy review site, and consider taking their advice on which projects to do for your student’s science fair project.

By: Jordan Matthews