Need help for science fair project? Ideas?
I have a science fair project at High School coming up and we need to conduct a science fair. Unlike other science fairs where you can do whatever you want, our science fair REQUIRES you to do a project based on a hypothesis and/or a question. I was just wondering what ideas do anybody have? I'm very interested in Forensics so does anybody know any experiments in Forensics? Thank You.
Help with physical science?
1. Scientists rely on models to represent concepts and process in physical science. Which on of the following is a reason why scientists use models? A. Models are always colorful. B. Models only show large objects. C. Models might be hazardous. D. Models can represent things that are too small to see. 2 .What is the defining feature of a system? A. properties that don't change B. collision C. interaction D. gravitational force 3. Consider a bathtub filled with water. with a plug in the drain. How long would this be considered a closed system? A. 2 hours B. a few seconds C. 10 hours D. 1-2 days 4. Our understanding of the atom has changed over time. Which idea that was once accepted is now considered scientifically inaccurate? A. An atom is a solid material. B. The nucleus is the center of the atom. C. Electrons have a negative charge. D. Electrons are arranged in layers. Please help me.
Why do we use models in science?
Because it is very difficult to do trial and error experiments on some things (like solar systems for example) and unethical on totters (like people) . Also, without some kind of model to guide the scientific process, things would be very disorganized and difficult to compare. Additionally, it's cheaper to experiment on a model (maybe a mathematical model, or computer model, or small scale physical model) until you get a significant result which helps decide which full scale experiments to run or pass on.Because science!
Someone good in Physical Science check my answers please?! 10 POINTS TO BEST ANSWER.?
They all look correct to me.
What are some good science working models for class 11?
Conceptual Physics IndiaSome of them are listed under :Remote Controlled LampSimple Emergency Light CircuitHome Security AlarmStreet Light Science Fair ProjectOver Voltage Cut off Circuit (High Voltage Cut off)Water Overflow Indicator for Water TanksLow Water Level Alarm (Water Empty Alarm) for Water TanksWater Low and High Level Detector CircuitElectromagnetic induction application as example magnetic train,magnetic car etc.Types Of Pollution-Working ModelEnergy From Shock Absorbers.Filtration of Water-Prototype ProjectMagnetic Security System ModelGrey Water Treatment with Power Generation ModelNewton Balls Model : Resoance condition.Conceptual Physics India Subscribe to get best video lectures.
Any GOOD SCIENCE FAIR PROJECT IDEAS?!?!?!?!?!?
I know this type of question doesn't get many answers, but anyone who crosses this and reads this, PLEASE suggest something, and make sure it isn't a dumb one... it has to be one that almost 90% of people wouldn't know what would happen. In other words, no volcanoes and junk with baking soda... or in other words, just don't, and i repeat DON'T, put plain old classics...
I need help with Science homework? Please Help?
In science were suppose to do a project on any type of model (DNA, atomic, etc. (I'll give you the info in a second) But I am really don't get it. So if you could please help that would be great :] Heres the info: Scientific models are placed in two categories, physical and computer models. Physical Models Physical models help us to have a three dimensional view of a scientific idea. Computer Models Computer models take lots of data and organize it in a way that aids in interpreting the data quickly and efficiently. For this assignment, please choose an example that fits into either of these categories and do a short presentation on it. Your presentaion must include the following info: * The name of the model * When it was first used * Who created it (this may be a team, company, or individual) * Why this model has been extremely useful to people and the field of science * Pictures of the model or pictures that relate to what the model does Please Help! Much Thanks! ~Mari
How can science be allowed to explore new ideas, create new models where the old ones have failed?
That’s the beauty of science.Or rather, the scientific method:Let’s say George figured something interesting out. Let’s say he thinks that there is a metal other than lithium that has a better energy density than lithium (for its weight). He is suspicious of what he thinks, so he runs all these tests to make his suspicions disappear, and make his predictions conclusive.Of course, even after relentless testing, he comes to his predictive conclusion.But it’s not enough.Thousands of expert scientists all across the world now test George’s conclusion. And now, all of them came to the same conclusion he did.So for the next 2 years, George’s claims are accepted as fact.But then, in the second year, a woman named Elizabeth discovers that there is a grave mathematical error along with a human error in the measurements George and the scientists made in measuring this material’s energy density.She concludes the experiment rectifying the mistake, only to realize that lithium is still the metal with the highest energy density at its weight.We now have all the scientists look over Elizabeth’s work, and conclude that she is, indeed, correct.And as easily as we constructed, we deconstruct.The bottom line is that the science and scientific method does not care how many times a new idea or a new model gets tested.It only cares to search for the truth. And whenever old ideas fail, science allows for new ideas to flourish. Out of it, we see a trajectory of progress.Something similar to what we have been seeing for the last 400 or so years.
What makes science philosophical?
The fact that science makes theories about reality.Actually, it doesn’t. Ideally, science would be purely empirical, making predictions about future observations without reference to any hypothesized “world”. But that just isn’t going to happen: The idea that there is an external world out there that we can discover by interacting with it is a lot older than science, probably older than humanity itself.This idea comes from a combination of two things; firstly, from identification with a body, me, which is under my control, all else being “not me” and essentially random. The second thing is the repeatable order that our experiences follow, the fact that science works. It is the success of science in making predictions that leads to the attribution of ontological status to its theories. In other words, the seemingly magical technology resulting from science makes people believe that it must be true.However, this truth is subject to change, each time a new theory makes better predictions. And it’s not just a matter of tinkering with details - the change from Newtonian physics to quantum mechanics forces a change in our worldview so huge that we haven’t been able to do it yet. New theories will enforce even more radical changes.In the end, science doesn’t tell us what reality is, but it helps in leading us there. Science is the great heuristic.
Can someone PLEASE help me with my science work. URGENT!!?
1. That would be the study of biology. The study of anything in the body would fall under the category of biology. 2. You have independent, controlled, and manipulated variables. 3. No. The scientific process begins with an idea... what is it you want to discover? Lets say you wanted to see what would happen if all ice in a cup melted... you would start by thinking about the question, not by looking at it... if you had already seen it, then why perform the experiment? 4. Number four can't be answered unless you supply all the information, especially *how* the scientists went about doing this. It would be considered a theory if their idea was backed by scientific proof. But if they only performed one controlled experiment, probably not. It takes a lot of times, and a lot of different variables to come up with a theory. 5. Hypothesis are usually formulated in an "if, then" sort of way. So it would be something like: "If I were to run at different speeds, then my heart rate would fluctuate accordingly." But, you can also write your hypothesis as simply an idea: "When you run, your heart rate might fluctuate." 6. So, a physical models are basically models showing tangible, physical objects. So I could make a model of a dog's heart out of legos. That would actually be kind of cool! And then you have "concept" models, which show concepts. You could model the big bang in this way... make a model showing what the beginning of the universe might of looked like according to the big bang theory. This isn't a tangible object, but rather a "concept".