High School Science Fair Ideas

High school science fair ideas are numerous and available in all subjects that you study in theory. But selecting a meaningful project suited for your educational grade is not very easy. To find interesting science fair ideas for high school, read on...

Science fair ideas for high school need not be tough or expensive just to draw attention. The logic is to choose a relevant topic and groundbreaking ideas that sound new and knowledgeable to onlookers. A high school science project should display an advanced degree of innovative thinking, creative ability and scientific knowledge. You can build a model, form a hypothesis and prove it with scientific applications, or repeat an existing hypothesis and demonstrate the results — in any case, think differently, research your topic well, and be prepared with the prospective results so you can boost your confidence for the big day.

Science Fair Project Ideas

• How can you neutralize oils in a saltwater sample? Is there a solution for neutralizing oil spills in oceans?
• Does the pH of a solution affect the corrosion rate of metals? How can corrosion be reduced?
• Study ways to recycle non-biodegradable goods. Which processing or recycling method works best?
• Is there any difference in the nutrition facts of genetically modified foods versus regular foods of the same type? (Try tomatoes as samples.)
• What is so special about the drosophila fly that it is frequently used in biology experiments?
• What are the effective methods for water purification? Does boiling water change its chemical properties?
• How does a television work? How can you see pictures on a TV?
• Study the differences between normal lights and LED lights. How do LEDs save energy?
• Is there a connection between the blade size (or number of blades) of a wind turbine and the amount of power generated?
• Do different diaper brands absorb the same amount of moisture? Which absorbs best?
• Why do agriculturists say monoculture reduces crop yield? What natural methods increase crop productivity?
• What factors affect the ripening of fruits? Does artificial ripening reduce nutritional value?
• In what alum concentration and temperature range do the largest crystals form? Does the rate of cooling affect crystal growth?
• How can you treat water by phytoremediation? Name some phytoremediation plants and their potential.
• Explain the process of bioaccumulation (for example, mercury poisoning in a water ecosystem).
• What is the phenomenon behind plant autotoxicity? (Take the alfalfa plant as an example.)
• What is allelopathy? How do some plants inhibit the growth of neighboring plants?
• Do olfactory responses differ with age across different age groups?
• Does the vitamin C content of lemon differ with variety? Which cultivar contains the most?
• Do natural mosquito repellents (e.g. plants) really drive away mosquitoes?
• Do all fertilizer brands promote plant growth the same way? Monitor growth of the same species with varied fertilizers.
• What are the long-term effects of pesticides and insecticides in the environment?
• What factors play a major role in seed germination, and how can germination be quickened?
• Why does a pole half-immersed in water look bent at the insertion point?
• Can a current be started in a metal conductor just by focusing light on it? (A photoelectric project.)
• What attracts a night insect — the light or the heat?
• What are the effects of air pollutants on roadside plants? (Measure leaf size and count stomata.)
• How do natural food preservatives prevent food deterioration? Name safe, effective ones.
• What is the phenomenon behind canning? Does the nutritional value of food reduce after canning?
• Do all soil types have the same erosion rate under identical conditions? Which resists erosion?
• How do bacteria develop resistance to antibiotics, and how can this be minimized?
• Do bathing soaps and dishwashing soaps promote the growth of algae? Why?
• Can you make cottage cheese at home? What is the role of yeast in cheese production?
• What are the approaches for containment and management of floods, and their pros and cons?
• Collect a rainwater sample and study its chemical and physical properties.
• Study phototropism and geotropism in home potted plants.
• Compare water samples from nearby ponds and rivers for pathogenic microbes.
• Why are stagnant water bodies polluted faster than running ones?
• What steps can be taken to prevent (or prepare for) earthquakes? Study previous earthquakes.
• How does a calculator work, and is it true it has limited precision?

More High School Science Fair Topics

• What are the different ways solar energy can be utilized to the maximum?
• How do stress and strain affect bridges?
• How do marine sponges regenerate?
• What is Dutch Elm disease and how is it spread?
• How do animals know when and where to migrate?
• How would you design an effective, cosmetic prosthetic device?
• What are the different methods of air purification?
• Do light and weather affect human well-being? In what way?
• Does age really affect learning ability in human beings?
• How do animal and plant cloning work, and what are the benefits?
• How would you create and design a computer video game?
• What are the different methods of weather forecasting, and how is the strength of a storm measured?
• How is the intelligence of animals tested, and which animals are the most intelligent?
• How does exposure to cigarette smoke affect the growth of plants?
• How do plants and animals adapt to pollution and city life?
• How does wet plate photography work?
• Can you grow plants without planting them in soil?
• Is there a difference in the brain sizes of a queen ant and a worker ant?
• How important is the human hypothalamus?
• What are radiation laws and how are they determined?
• How does precision farming work?
• Under what conditions do wildfires start, and what is their impact?
• What causes an aurora, and where and when can you see one?
• To what extent do snow, ice and permafrost influence changes in the natural landscape, and how would you measure the ice thickness of a glacier?
• Why don't oceans freeze over in winter?
• What is the relation between wind direction and temperature inversions?
• What factors determine eye color in humans?
• What factors bring about a volcanic eruption?
• What exactly happens within our body when we get hungry?
• Why do we need to sleep, and what changes take place in our body when we do?
• What is the process by which wounds heal?
• How would you save an endangered wildlife species?
• How does space travel work, and what would we need to set up a colony on the Moon?
• How many different kinds of ray-finned fishes (Class Actinopterygii) are there in the world?
• Where are the Finger Lakes and how were they formed?
• What are Precambrian rocks and how were they formed?
• What is the impact of alien plants on an ecosystem?
• How is a coral reef formed?
• How is bacteria used in bioremediation?
• What is the role of marine viruses, bacteria and phytoplankton in the marine food web?
• What effect does farming have on biodiversity?
• What causes a tsunami, and how can it be predicted?
• How do archaeologists analyze ancient artifacts, and why did the Ancient Egyptians mummify their dead?
• How does carbon monoxide spread through the atmosphere and affect greenhouse gases?
• What climatic changes are expected as a result of rising ocean levels?

These are some high school science fair ideas to consider for your upcoming project. Research your chosen topic thoroughly and be ready with the prospective results — you want the judges to notice your science venture and to earn good grades.