Science projects are the perfect medium for students to understand the varied workings and the different theories of science. These projects allow practical knowledge to flow through, and since the students handle these projects themselves, it allows them to develop an interest in science as a whole. Which is why, science fair projects are highly encouraged, and made a part of the school curriculum. There are several topics, both, simple and complex that can be taken up for a project. In this Buzzle article, we are listing some of the best ideas that you can undertake. These are simple themes that can be duplicated with the help of everyday household materials. Arrange for a plank of wood for the base and place (or even stick) an empty plastic bottle on it. To make the volcanic mountain, mix together dough, papier-mâché, and salt. Use this paste around the plastic bottle to make it look like a mountain. Close the area around the mouth of the bottle, leaving the hole open for the eruptions. Once your mountain is ready, paint it and form ridges on it to make it look like an authentic miniature. For creating an eruption, make a mixture of 1 tbs dish washing powder, 1 tbs baking powder, and few drops of red food color. Pour this mix into the empty bottle. For the final eruption, add ¼ cup of white vinegar to it, and voila! The roaring volcano will begin to explode. Arrange for nine plastic balls and one big, orange ball for this fun project. Make sure you have them in the appropriate colors and sizes, as that of the planets. Paint a cardboard box with a black background that has a white strip across the board to depict the milky way. You can use silver acrylic paint to make your stars stand out. String the balls in the order of the planets and place the sun at the start. Let the string or the wire come out of the box so that you can handle it from the outside and rotate the planets to show how day becomes night and night becomes day. Make a house of cardboard or a mount board with an open base. Place the model on top of a vessel that contains water―this will become your basement. Use the seeds of any of the pulses and sow them in the garden of your model house. Attach a pipe to the basement of the house (the water vessel) and allow an outlet to the top―this will form the rain. Collect the rain in a reservoir on top of the house and send it back to the basement. Connect the basement with the garden and watch the seedlings bloom within two days. To show an inclined plane, take a plank of stiff paper and place it in a slanting position with your toy truck. Keep a weight on the plank and show a man pushing the weight up in the truck. To make a pulley, take a reel of thread and tie a weight at its end. Roll the reel so that the weight is drawn up. This way, you can show your friends how a pulley works. Schools assign projects in order to make children understand how a certain law or a system works in practicality. Often, science projects are given as homework so that children refer to books other than the books prescribed in their school curriculum. School projects is a great platform for parents and children to open up and build a bond of trust. Abiding by project and homework deadlines helps children learn and respect rules. While helping your child will ensure that a bond is formed, make sure that you do not end up completing, or worse, doing the entire project for them, justifying that they are incapable of handling it by themselves. Help them where the need be and let them have the honor of claiming the project for themselves. Whether they win the science fair or not is inconsequential, the fact that they've learned so much is what's important.