Science Buddies will be making upgrades, beginning Saturday April 18 at 10:00PM PST for approximately 4 hours.
While we do not expect this to significantly interrupt our services, our website might be slower during the maintenance window.
We apologize for any inconvenience!
Home Store Project Ideas Project Guide Ask An Expert Blog Careers Teachers Parents Students

Others Like “Enzyme-Catalyzed Reactions— What Affects Their Rates?”

Showing top 20 results.
Science Fair Project Idea
thumbnail In this project, you'll learn how to isolate DNA from onion cells, separating it from other cellular components in a manner that still preserves its structure and sequence. In the end, you'll have enough DNA to see with the unaided eye, and you'll be able to spool it to demonstrate its strand-like structure. Read more
BioChem_p001
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution when handling ethanol because it is very flammable. Adult supervision is recommended for using the stove and a food processor or blender.
Science Fair Project Idea
thumbnail Have you ever noticed that the salt you are using says it is "iodized"? Iodine is an important micronutrient, which means we need it in small quantities to be healthy. Because iodine is rare in many people's normal diets, it is added to table salt. Then when people salt their food, they are also adding this important micronutrient. In this food science project, you will use some kitchen-friendly chemistry to investigate which types of salt have iodine added (in the form of iodide) and which do… Read more
FoodSci_p011
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Crystals come in all different shapes and sizes. However, the purest and cleanest crystals are usually also the ones that grow to be the largest in size. In this science fair project, you will compare the size and shape of crystals grown in three different temperature conditions: room temperature, in the refrigerator, and in an ice bath. With just water and borax, a household cleaning product, you can discover the best recrystallization method for growing large, pure crystals. Read more
Chem_p082
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required when handling boiling water and borax. Borax is harmful if swallowed, inhaled, or contacts eyes. On rare occasion touching borax can result in rashes
Science Fair Project Idea
thumbnail What is the first thing you do when you wake up on a cold, frosty morning? Snuggle down deeper under the covers? Animals, like puppies and piglets, do not like being cold either, but they do not have hands or blankets to wrap themselves up. So when animals get chilled, they change their behavior and do things like huddle—they curl up close to other animals. In this mammalian biology science fair project, you will see just how much huddling can help reduce heat loss. Read more
MamBio_p027
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution when handling glass jars or thermometers, as they can break or crack if dropped. Adult supervision is required when using the stove.
Science Fair Project Idea
thumbnail Have you ever watched your parents dress up for a big evening? They may even splash on a bit of aftershave cologne or dab on some perfume since it is special occasion. But did you know that using perfume and scents is an ancient activity? Perfumes and the art of making perfume is an art that is thousands of years old. In this chemistry science fair project, you will learn more about one way to make perfume, called enfleurage, and experiment with it to extract your own floral scents. Read more
Chem_p083
+ More Details
- Less Details
Time Required Very Long (1+ months)
Prerequisites You need to have access to a stovetop to perform the enfleurage technique.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible when using the stovetop. This science fair project requires using a small amount of alcohol to make perfume.
Science Fair Project Idea
thumbnail Sometimes science can be really messy or use pretty disgusting ingredients. That is what it takes to understand how the world works, even if the experiment isn't pretty. Do you like chemical reactions that stink and ooze foamy bubbles? Do you think it sounds fun to make a super gross liver smoothie? Then this is the experiment for you! Read more
BioChem_p030
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites none
Material Availability Readily available
Cost Very Low (under $20)
Safety Use caution when handling the sharp knife and the blender. An adult may need to assist with these steps. Also completely disinfect any surface that the raw liver touches.
Science Fair Project Idea
thumbnail Do you know why enzymes are oftentimes called the workhorses of biochemistry? It's because they can speed up a wide variety of chemical reactions, and chemists and biologists use enzymes to do all kinds of jobs. In this project, pectinase, an enzyme frequently used in the food industry, will be used to extract juice from apples. Read more
BioChem_p010
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty Items
Cost Average ($40 - $80)
Safety Use care when using sharp knife to chop apples. Do not drink the juice produced in this experiment.
Science Fair Project Idea
thumbnail Imagine that you want to create your own brand of colored candies. You know they would be a success if only you could figure out how to make a certain color, such as purple. How can you do this when government regulators have approved just a few food dyes? First, you will need to find out how your competitors make all of their colors from these few dyes. Do different candy brands use the same or different dyes? This can be figured out with gel electrophoresis, a technique commonly used in… Read more
BioChem_p039
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability This project requires a [# Link Name="BioChem_p039.1" Value="HtmlAnchor" #]. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Use caution when heating the agarose. Never connect more than five 9-volt (V) batteries together for this project.
Science Fair Project Idea
thumbnail You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar or salt) that are dissolved in the water? Do they boil off too, or do they stay behind? Read more
Chem_p024
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Adult supervision required.
Science Fair Project Idea
thumbnail Have you ever wondered why a plant that grows well in one environment may not survive in a different environment? For example, plants that grow well in a wet jungle would probably not do so well in a dry desert, lacking enough water. This is because plants have adapted to their specific environment. Some plants have even adapted to tolerate chemicals that would usually be toxic, such as various heavy metals. In this plant biology science project, you will investigate whether different… Read more
PlantBio_p047
+ More Details
- Less Details
Time Required Very Long (1+ months)
Prerequisites None
Material Availability The Arabidopsis thaliana seeds for this science project need to be specially ordered in advance with the help of a parent or teacher. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Take all proper safety precautions when working with the heavy metals. Wear gloves. You may need additional protection, such as goggles.
1 2 >
Search Refinements
Areas of Science
Behavioral & Social Science
Earth & Environmental Science
Engineering
Life Science
Math & Computer Science
Physical Science
Difficulty
 
Cost
Time
Material Availability