Search query: acids and bases chemistry

Product: YELLOW SCOPE | Science Kit Bundle: Foundation Chemistry Kit + Acids, Bases & pH Kit. Dozens of STEM Experiments for Kids Get ready for hours of fun by the beaker! Yellow Scope science kits are different – they take kids and science seriously. Mix, pour, bubble, create. With loads of supplies and a little imagination, there’s no limit to what they can discover! Our award-winning chemistry kit is designed to engage the scientific and creative minds of kids 8 and up. The lab notebook outlines instructions for 19+ exciting hands-on experiments. Plus, there are plenty of reagents for girls to design their very own experiments! This kit includes: 28 page lab notebook, safety goggles, 3 beakers, thermometer, timer, stir stick, candle, citric acid, sodium bicarbonate, colored dyes, colored tablets, chalk cloth, chalk, colored pencils & pencil sharpener, pencil and collectible chemistry pin. Yellow Scope was founded in 2014 by scientists and moms, Marcie Colledge and Kelly McCollum. Marcie and Kelly met in 2008 at their children’s elementary school as volunteers running the school's STEM programs, including Family Science Nights and the Science Fair. Their “aha moment” was realizing how well they work together and how passionate they both are about science, kids, and education. Over the years, this grew into an idea to build a company that would help kids fall in love with and build confidence around science. Thus Yellow Scope was born! At Yellow Scope, we make rigorous, creative (and fun!) science kits for kids. Each kit is lovingly assembled by hand in Portland, Oregon. YELLOW SCOPE

Product: Ph. 1-14 Test Paper Extensive Test Paper Litmus Test Paper Sonkir pH Test Strips，Test pH for Saliva Urine Water Soil Testing(2-Pack pH Test Strips) Save: Ph test strip should be stored in a dry place to avoid light, and no sour and alkaline air can be stored again.
When using, please do not immerse the Ph strip in the test liquid. It can cause the test results to be displayed incorrectly.There is a detailed English description on the back of the product.
Test paper can not indicate the Acid or alkali solution when its density was lower than 0.01%.
The color changes of the test strip need to be matched within 15 seconds. Paper Size: 45mm x 7mm (L x W) Packing Content: 2 X Pack(160 pH Strips)
Ph 1-14 color chart in each pack,and each pack is attached with a color comparison card, which indicate different Ph values correspond to specific colors.
Under normal circumstances, the solution of the tested paper will produce color changes one second after contact with the test paper
Different Ph content discoloration range is different, by comparing the color card ratio: the smaller the number, the stronger the acidity, and the larger the value, the stronger the alkalinity.
Ph test strip can be commonly used to test many commonly used substances, including urine, sweat, moisturizing soap, lemon juice, milk, liquid detergent, moist soil, and so on. Aulyn