ELEMENTARY SCIENCE FACTS & REVIEWERS

  QUIZ BEE FOR SCIENCE QUEST (THIS ALSO SERVES AS LONG QUIZ NO. 1)  Name: ________________________________________________________________ LRN: ___________________________________________________________________ **1. What is a mixture in chemistry?    a. A pure substance    b. A combination of two or more substances    c. A chemical reaction    d. A solid substance **2. Which of the following is NOT an example of a mixture?    a. Air    b. Pure gold    c. Lemonade    d. Salad **3. What type of mixture has components that are not evenly distributed and can be distinguished easily?    a. Homogeneous mixture    b. Heterogeneous mixture    c. Colloid    d. Suspension **4. Which of the following is a homogeneous mixture?    a. Sand and water    b. Oil and vinegar    c. Salt and pepper    d. Sugar and water **5. What is the p...

SEPARATING MIXTURES BY: PJ MIANA Introduction Understanding and mastering techniques for separating mixtures is not only a fascinating aspect of science but also an essential life skill. In our daily lives, we encounter a multitude of mixtures, from the ingredients in our kitchen to environmental challenges such as pollution and water purification. Learning how to effectively separate mixtures is crucial for solving real-world problems, making informed decisions, and gaining a deeper understanding of the world around us. In this lesson, we will explore various techniques such as picking, winnowing, decantation, the use of magnets, sieving, filtering, and evaporation. These techniques are not only fundamental to scientific inquiry but also find practical applications in industries like agriculture, food processing, environmental science, and more. By grasping these methods, we empower ourselves to tackle complex challenges, conserve resources, and contribute to a cleaner and more sustai...

 QUIZ: SOLUTE, SOLVENT AND SOLUTION Direction: Analyze each question carefully. Answer the question by copying the letter and the text of the correct answer. 1. What is a solute?    A) The dissolving medium    B) A substance that is dissolved in a solvent    C) A type of gas    D) A solid substance 2. What is the solvent?    A) A substance that is dissolved in a solute    B) The dissolving medium    C) A gas    D) A solid substance 3. In what states of matter can solutes and solvents exist?    A) Solid and liquid only    B) Liquid and gas only    C) Solid, liquid, or gas    D) Solid only 4. What does "miscible" mean in the context of solutes and solvents?    A) Unable to mix together    B) Able to mix together to form a solution    C) Only mix in a gaseous state    D) Mix only in a liquid state 5. What is the solubility of a...

 SOLUTE + SOLVENT = SOLUTION Activity 1 DIRECTION: Do the following activities and answer each question that follows. Activity A. Where did it go? Step 1: Get the water, container and salt grains ready.  Step 2: Put the salt grain in the container.  Step 3: Pour the water in it.  Step 4: Stir the water until the salt grain is gone.  QUESTIONS:  1. What kind of mixture is exhibited in Step 3? Homogenous or Heterogenous? Why? Answer: __________________________________________________________________________ 2. What happened to the mixture after Step 4? What type of mixture is this now? Why? Answer: __________________________________________________________________________ 3. What transformed the mixture from heterogenous to homogenous? Explain. Answer: __________________________________________________________________________ Activity B. Making my Own Drink Step 1. Get the materials ready -- container, water and powdered drink.  Step 2. Pour the powdered...

 20 FACTS ABOUT SOLUTES AND SOLVENTS Here are 20 important facts about solutes and solvents: A solute is a substance that is dissolved in a solvent. The solvent is the dissolving medium. The solute and solvent can be in any state of matter: solid, liquid, or gas. The solute and solvent must be miscible, meaning they can mix together to form a solution. The solubility of a solute is the amount of solute that can dissolve in a solvent at a given temperature. The solubility of a solute can be affected by factors such as temperature, pressure, and the presence of other solutes. A solution can be saturated, unsaturated, or supersaturated. A saturated solution is a solution that contains the maximum amount of solute that can dissolve at a given temperature. An unsaturated solution is a solution that contains less solute than it can dissolve at a given temperature. A supersaturated solution is a solution that contains more solute than it can dissolve at a given temperature. The...