Science Kits (2024)

Rubber Latex

Author(s): Craig Didden & Brandon Duran

Instrumentation - Teacher's Guide
SED 695B; Fall 2005

Overview: This experiment looks at the properties and chemistry of rubber latex. Rubber latex comes from the sap of rubber trees and is made of tiny particles or globules of rubber that are held suspended in water. When sap is collected, ammonia is added as a preservative to keep it from coagulating or clumping before use. When vinegar is added, an acid, to the latex, the vinegar reacts with the ammonia and neutralized it. Then the rubber coagulated.

Science Kits (1)

This a picture of the instructional manual that comes with the kit.

Topics addressed:

Chemistry High School:

Students know definitions of solute and solvent.

Students know the atoms and molecules in liquids move in a random pattern relative to one another because the intermolecular forces are too weak to hold the atoms or molecules in a solid form.

Physical Science 8th grade 5:Students know reactant atoms and molecules interact to form products with different chemical properties

Science Kits (2)

Procedure: 1. In one cup add one tablespoon of vinegar and two spoons of water.

2. Fill the other cup half way with water.

3. Add1/2 teaspoon of Rubber Latex into the cup with vinegar.

4.Stir with the spoon and try to form a glob of rubber into a ball.

5.Use the spoon and put the rubber ball in the cup from step 2 to wash it.

Questions: 1. List three characteristics of a solid, a liquid, and a gas.

2. What is a polymer?

3. Is the rubber latex a liquid or a soild after you placed it into the vinegar & water bath? Give evidence to support your claim.

4. How does the water & vinegar bath change the chemical make up of the rubber latex?

Science Kits (3)

This picture shows a spoonful of Rubber latex before it was submerged in the cup of water and vinegar. Notice that the latex seems to be a liquid.

Science Kits (4)

This picture shows a spoon ful of the Latex rubber after it was submerged in a cup of vinegar and water. Notice that the latex has clumped together to form a semi-solid substance.

Science Kits (5)

This picture shows the Latex Rubber both before it was put into the vinegar and water, sample B, and after it was put into the vinegar and water, sample A. Notice the change in the shape of the Rubber Latex.

References & Links

What is a polymer?

http://www.google.com/search?hl=en&lr=&oi=defmore&defl=en&q=define:Polymer

Science Bits Chemisrty Kits

http://www.macnanbio.com/index.asp?PageAction=VIEWPROD&ProdID=1279&HS=1

Science Kits (2024)

FAQs

Why are science kits good? ›

Science Kits are more than just a science exploration toy; they may also help children to learn about science and the world. Too many children aspire to be great scientists when they grow up.

How to answer science experiment questions? ›

To answer an experimental question, an individual needs to identify the variables involved and then set up a way to test them. Usually, an experimental question focuses on two variables at a time.

How many items are in a primary science kit? ›

The primary science kit consists of 31 items. The kit is mainly for teachers' to demonstration and also can be used for student science activities, since only one item is supplied for each type of teaching aids.

What are science kits used for students? ›

Science kits make use of real life investigations that help kids to think about what they have learnt and how to apply it when they go outside to discover, or while they are in the classroom.

Is science good or bad why? ›

Scientific findings frequently benefit society through technological and other innovations. Technological innovations may lead to new scientific breakthroughs. Some scientists are motivated by potential applications of their research.

What should be in a science kit? ›

Lab tools: Measuring spoons, measuring cups, funnels, test tubes, straws, stirring bars, droppers, syringes, petri dishes, spoons, etc. Experimental materials: chemical materials, paints, wigwam models, Christmas tree models, ping pong balls, crystal seeds, candles, etc.

What is a tricky science question? ›

Can air make shadows? Can gold be created from other elements? Can light bend around corners? Can momentum be hidden to human eyes like how kinetic energy can be hidden as heat? Can one bit of light bounce off another bit of light?

What are some questions science can't answer? ›

What happens to us after we die? How did so much life appear on our planet when others seem devoid of any species at all? Who, if anyone, pulls the strings of our universe? Is it some all-powerful god in control or are there physical and mathematical principles driving the engine of our existence?

How to make a science kit at home? ›

Some useful things to start gathering together

From a science kit, DIY ones, swimming goggles, snorkelling mask, Nerf goggles…if they stop things splashing into your eyes, they're all good. Containers – you don't need test tubes or special equipment; plastic cups, yoghurt pots and old beakers are perfect.

What are laboratory kits? ›

Lab Kits include an array of products consisting of optical components, optomechanics, cleaning supplies, light sources, and general tools. The components of each kit are designed to supply a lab with commonly consumed items and also provide the foundation for new labs of many application spaces.

What is a science box? ›

Science subscription boxes can give young learners the tools they need to explore, experiment, and discover the wonders of science. Introducing new science skills each month through fun projects can transform curious individuals into engaged scientists, all while they're having fun.

What are the benefits of science kits for kids? ›

Science experiments for kids have become an integral part of educational development, offering a hands-on and interactive approach to learning. These experiments can foster curiosity, critical thinking, and problem-solving skills while making learning enjoyable.

What is in a chemistry kit? ›

Contents
  • vials of dry chemicals.
  • metal wires, such as copper, nickel or zinc.
  • metal filings, such as iron.
  • graphite rods.
  • a balance and weights.
  • a measuring cylinder.
  • a thermometer.
  • a magnifying glass.

Why are learning kits important? ›

They can be used in various educational levels, from elementary school to university, making them adaptable and versatile. Additionally, learning kits can be cost-effective, portable, and easy to use, providing a convenient and accessible way for students to engage with educational materials.

What are the advantages of science laboratory? ›

7 Benefits of a science lab for students at Ameya
  • Gives Students Hands-On Experience. ...
  • Helps Students Formulate Their Own Ideas. ...
  • It fosters curiosity. ...
  • Encourages creativity. ...
  • Self-directed learning. ...
  • Help improve memory. ...
  • Students become more focused. ...
  • Better concentration levels.

What makes science good science? ›

"Good" scientists always consider the effects of bias, blind spots and misinterpretation on any research. That is why they attempt to put in safeguards, such as: Double blind, controlled experiments, replication, falsification, ample sampling, appropriate demographics.

What makes a science project good? ›

A good science fair project idea should have two main qualities: it should be related to a student's interests, and it should aim to answer a new question or share new data.

Why is science more reliable? ›

By basing its conclusions on multiple lines of evidence drawn from experiments and observations, science seeks to build reliable knowledge and provide scientific explanations that people can use to better understand the world around them and inform their decision making.

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