If I add fertilizer to the soil of some tomato seedlings, but not others, then the seedlings that got fertilizer will grow taller and have more leaves than the non-fertilized ones.ĭoes an electric motor turn faster if you increase the current?Įlectric motors work because they have electromagnets inside them, which push/pull on permanent magnets and make the motor spin. Fertilizer adds those nutrients to the soil, thus allowing plants to grow more. Plants need many types of nutrients to grow. If I let a 70-pound dog and a 30-pound dog eat as much food as they want, then the 70-pound dog will eat more than the 30-pound dog.ĭoes fertilizer make a plant grow bigger? To get the energy their bodies need, the larger animals eat more food. Larger animals of the same species expend more energy than smaller animals of the same type. How does the size of a dog affect how much food it eats? A single hypothesis can lead to multiple predictions, but generally, one or two predictions is enough to tackle for a science fair project. Predictions should include both an independent variable (the factor you change in an experiment) and a dependent variable (the factor you observe or measure in an experiment). Predictions often take the shape of "If _then _" statements, but do not have to. Sometimes people refer to the tentative answer as "an educated guess." Keep in mind, though, that the hypothesis also has to be testable since the next step is to do an experiment to determine whether or not the hypothesis is right!Ī hypothesis leads to one or more predictions that can be tested by experimenting. Then she uses that information to form a tentative answer to her scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic. Thank you.A hypothesis is a tentative, testable answer to a scientific question. If this project receives positive I might consider making more varations of micro builds. I found it interesting to find pieces that gave the micro-scale look I was looking for. The rocket sits on a revolving plate allowing the rocket to be displayed in any direction. The windows on the tan/brown building are made with The Piece of Resistance from the LEGO Movie series. Some of the windows on the castle as well as the blue skyscraper were made using the sides of 1x2 grooved plates. I chose the color scheme for the Mars diorama because it reminded me of the Mars Mission series, one of my favorites as a kid.Įach model sits on a base, each assembled the same way. The mars base includes a rocketship and a modular-style Mars base. The modern city includes four unique skyscrapers as well as a fish statue on the ground level. At the bottom of the staircase is a set of docks with a micro-scale pirate ship in port. The castle sits atop a rock formation with a twisting staircase leading to the castle from the sea below. I wanted each model to have its own unique color scheme, separating each one from the others. The three worlds progress through time, beginning with a castle from the medieval ages, to a modern city, and finally a futuristic Mars base. This projet idea is a series of three differently themed micro-scale builds.
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