Search query: acids and bases chemistry

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)
Brand: Aulyn
Relevance: Exact
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.

Product: YELLOW SCOPE | Acids, Bases & pH: Cabbage Chemistry Kit. Colorful Science/STEM Experiments for Kids
Brand: YELLOW SCOPE
Relevance: Exact
LEARN THE BASICS - The 24-page lab notebook and 24 piece toolkit teach 8-12 year-old girls the basics of acid-base chemistry, pH scale, and neutralization.
AWARD-WINNING - Won a Parents' Choice Gold Award and was 2017 Finalist for Toy of the Year.
19+ EXPERIMENTS - The detailed lab notebook outlines 19+ colorful and fun experiments that encourage girls to explore acids and bases in the world all around them. It also includes fun facts, quizzes and a "Be A Maker" chapter that shows girls how to make their own acid-base indicator and pH paper at home.
FUN & EDUCATIONAL GIFT - This kit makes a great STEM (Science, Technology, Engineering and Math) and STEAM (STEM + Art) gift that will get girls excited about science.
INCLUDED - 24-page lab notebook, safety goggles, 2 test tubes, concentrated red cabbage powder/indicator, 7 small measuring cups, 6-well experimental palette, dropper pipette, 5 filter papers, 5 toothpicks, “Think Like A Girl” pencil, and collectible science pin.