Chances are good you probably did easy science experiments like this when you were in school. The baking soda and vinegar balloon experiment demonstrates the reactions between acids and bases when you fill a bottle with vinegar and a balloon with baking soda. Learn more:Baking Soda and Vinegar ...
Check out our mess-free version of a classic science experiment. This egg drop challenge is a great way to introduce kids to the scientific method as you test out ideas to protect your egg from cracking. EGG IN A BOTTLE This egg in a bottle project is a fun way to learn about how ch...
A hydroponic system using a plastic container, water, and plant cuttings Test how light affects plant growth and placing plants in different lighting conditions Making a model of a greenhouse Model of a plant cell using styrofoam Designing an experiment to test how different types of fertilizers af...
.阅读理解Scientists study the natural world by using“scientific method” . When a scientist observes some phenomenon in na-ture, he develops an idea, called a theory or hypothesis(假设),about what is happening. Then he does an experiment to test his theory. If the results are as expected,...
【题目】 Scientists study th e natural world by using"scientific method". When a scientist obs erves som e phenomenon in natur e , h e develops an id e a , called a theory or hypothesis (), about what is happening. T hen h e does an experiment to test his theory . If th e ...
Learn more:Layers of Liquid Density Experiment Discovery Place Science 48. Build a catapult Difficulty: Easy / Materials: Basic Build a simple machine—a catapult—using craft sticks, a plastic spoon, and rubber bands. Your students will have a fun time seeing how far they can fling objects ...
What happens:Just like in Galileo’s experiment, you’ll see that both objects, even though they have different weights, should fall and hit the ground at the same time. This shows that gravity pulls objects to the ground at the same rate, no matter how heavy they are!
Get great science fair projects, kids science projects & experiments, & science articles at Science Made Simple. Free Sample Projects. Learn how to choose science fair topics & ideas, plan and perform your science experiment using the scientific method &
When you use the scientific method to 3 an experiment(实验), you start by making observations (观察) about something that interests you. Accrording to your observations, you make a hypothesis(假设). This is using 4 you know to make a smart guess about what you think could happen. Then ...
Whenyouusethisscientificmethodtoconductanexperiment,youstartbyobserving(观察)somethingthatinterestsyou.Basedonyourobservations,youmakeahypothesis.Thisisusingwhatyouknowtomakeasmartguessaboutwhatyouthinkcouldhappenorwhatmaybehappening.Then,youarereadytobeginyourexperiment.Throughoutyourexperiment,youtakedownnotes,which...