Demonstrations in chemistry classes

I am deeply indebted to Mr. Measuring Solubility Index 1. Materials and Equipment 7. This property of diffusion takes place very rapidly in case of […] Chemistry Project to Study the Rate of Diffusion Study the Rate of Diffusion Introduction When substances are brought in contact with each other, they intermingle with each other.

Demonstrations in chemistry classes

Printed in Practical Homeschooling 77, Your teen needs lab science. Tweet If you ever intend to apply to college, or to have one of your children apply to college, read on.

You could be heading for a huge disappointment if you make one particular mistake in how you plan your curriculum. We just found out that one of our young in-laws will not be attending the college of her choice this fall. With great happiness, she had received her acceptance letter in the spring.

This late in the summer, she was already planning what to pack and bring to her new dorm. She couldn't believe it when, just last week, the college wrote her again, telling her not to come.

What had gone wrong? It turns out that her public-school guidance counselor gave her some bad advice. There had been a scheduling conflict with the physics course, with associated lab, that she had signed up to take her final semester. Rather than revising her schedule to accommodate that physics section, or substituting another lab science course, the counselor told her that the non-lab chemistry she had already taken was good enough.

You can't get into a decent college without lab science. You can't get into a good college without lots of lab science.

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To be safe, it's best to plan for four years of high-school science, with at least two of them being lab science. If you're aiming for MIT or Stanford or the equivalentmake that three or four years of lab science. This means you should plan to take your first lab science course in your ninth grade year.

What Is Lab Science? A lab science course that colleges will accept has to include a fairly large number of experiments which illustrate the scientific principles being taught in the "lecture" portion of the course. My high-school chemistry class had a lab period once a week. Even if we actually did an experiment in half the class periods, that would come out to 18 experiments in a year of chemistry.

The experiments have to be high-school quality. It isn't enough just to take nature walks, gathering leaves and pressing them, or to look at the stars to pick out constellations. High-school level lab science goes beyond simply appreciating creation to actually studying it.

If you gather the leaves while carefully cataloging what plant they came from in order to classify the plants, or if you collect leaves in order to extract the pigments for paper chromatography, or if you spot constellations in order to locate the North Star and measure its angle of inclination from the horizon at midnight and then use an almanac to determine your latitude, those are high-school-level experiments.

Lab science in high school is meant to introduce you to lab science in college. It is meant to teach lab procedures, lab safety, use of equipment, data gathering and measurements, graphing and charting of data, calculations to determine physical relationships, how to use logic to devise experiments and interpret results, and integrity in reporting results.

In short, lab science teaches the scientific method. Creating your own experiments or equipment is not advisable in a high-school science course. Creativity is not wanted at this point. If someone examines your science course's lab component, he will be looking for thoroughness - whether or not it covers the standard range of experiments in a way that teaches the concepts those experiments were meant to teach.

So it's best to use "standard" resources.

Demonstrations in chemistry classes

The exception to this rule is if you're doing cutting-edge research, like Philip Streich, the Intel Science and Engineering Fair winner we interviewed last issue, though I am sure even he went through the standard prerequisite chemistry and physics before he was able to participate in the research that led to his award.

Equipment Needed Lab courses require supplies and equipment beyond what is normally found in the home. First you need consumables, breakables, and disposables. Consumables are chemicals staining solutions, etc.

Breakables are glassware or plasticware things like beakers and flasks, thermometers, or microscope slides and cover slips that are reusable, but may break and need to be replaced.On the first day of class, at the beginning of the semester or school year, I believe that students should be exposed to chemistry, as opposed to an introduction to the course, a discussion of topics or syllabus for the semester, measurement activities, or whatever.

PREPARATION OF POTASH ALUM FROM SCRAP ALUMINUM Chemistry Project Name of Institute: Sindhi High School, Hebbal This is to certify that Mr.

%artftii Srinivas of class twelve, Sindhi High School, Hebbal has satisfactorily completed the project in Chemistry for the AISSCE as prescribed by CBSE in the year VDG VERSUS PC A VDG is a constant current source.

During normal operation there is a large e-field around the device, but there is also a . Tom, I teach at a research class at Holmdel, NJ and am always looking for projects for kids to do. This class is for upper level students, but in the next two years we plan to start research with the eighth graders and phase their research projects into the high school where they .

The list of topics (see below) is similar to that of a high school chemistry course, although with a greater focus on reactions occurring in solution and on the use of the ideas to design and carry out experiments.

INTRODUCTION. It is an all-too-familiar scenario: The job candidate for a biology department faculty position gives an outstanding research seminar, showing skill in formulating a hypothesis, carrying out meaningful research, analyzing data, forming conclusions, and translating work into the larger picture of science and society—it is an effective demonstration of the process of science.

Small Research Projects in the Chemistry Classroom | Chemical Education Xchange