Water is one of the most crucial sources for life on Earth, often causing problems when at lack. Local economic, environmental, and social conflicts are caused by water scarcity. Such conflicts derive from the economic benefits for the company, water privatization, by companies such as Nestle – Nestle Pure Life (bottled water). These big companies…
Water has many unique characteristics which make life possible on earth and support it. One of these properties is water’s high specific heat, or water’s ability to resist changing temperatures. In terms of water’s chemical nature this is possible because of the large amount of energy which would be needed to break the hydrogen bonds…
Introduction: Our group had done 3 data sets for the same experiment process, and had recorded 3 groups of data. The aim of experiments was to determine the percentage of water in hydrated Ca(NO3)2. We obtained the percentages through experimental procedures of reacting Ca(NO3)2 with Na2CO3 , filtrating and drying CaCO3. The chemical equation of…
Purpose: The purpose of the lab was to dissolve Copper salt in water with an excess of Aluminum. The mass of the Copper formed was to be determined and the percentage yield was to be calculated. Related theory A chemical reaction is the change of substance into a new one that has a different chemical…
Water-Based Paint -Watercolour, acrylic, ink, dyes, gauche, and tempera media. -These types need water to create a liquid colour. -Adding water makes the colour vibrant or more transparent. Tempera Paint -Used egg yolk as a binding agent, mixed with coloured pigment to create a fast-drying and permanent medium. -First known as egg tempera paint. -Very…
Title of Work: Bless Me Ultima Author & Date Written: Rudolfo Anaya 1972 Country of Author: New Mexico, USA Characters Ultima- An old Curandera who comes to spend her last days with Antonio and his family. She is Tony’s mentor and helps him to find the right path for his life. Antonio Marez- A young…
Temperature Most seeds need a certain degree of warmth to germinate (sprout). Most plants have an optimal (best) range of temperature for growth. Higher: Plants have smaller leaves, thicker cuticles, and wilt is more likely to occur. Lower: Grow lower to the ground, have shorter life cycles, and dish-shaped leaves. Temperature affects moisture and nutrient…
NUTRITION The study of the nutrients in foods and of the body’s handling of them. This includes ingestion, digestion, absorption, transport, metabolism, interaction, storage, and excretion. FOOD Material containing nutrients taken into the body for the maintenance of life and the growth and repair of tissues. NUTRIENTS Substances obtained from food and used in the…
Up to now, we’ve been looking at how matter reacts and changes on a large scale. Now, we’re going to examine why matter changes. To do this, we need to break matter down into its smallest units to understand how it works. THE PARTICLE MODEL All matter can be broken down into smaller pieces until…
The atom is the basic unit of matter. Atoms bond to one another to form compounds. Bonds are formed by the sharing or transfer of electrons present in the atoms. Bonds between Atoms: Chemical Bonds Covalent compounds – formed by the EQUAL sharing of electrons between atoms – electrically neutral molecules (no “+” or “-“…