Why is sodium fluoride used in toothpaste? USES: Sodium fluoride makes teeth more resistant to decay and bacteria that cause cavities. This medication is used to prevent cavities. Is sodium fluoride positive or negative? It is neutral because the Na and F atoms are transferring their valence electrons in order to become stable. This results […]
Should peanut butter be refrigerated?
Should peanut butter be refrigerated? An open jar of peanut butter stays fresh up to three months in the pantry. After that, it’s recommended to store the peanut butter in the fridge (where it can maintain its quality for another 3-4 months). If you don’t refrigerate, oil separation can occur. Here’s a run-down. How long […]
How much is your true weight if the scale shows 100 kg?
How is reliability measured?
How is reliability measured? Reliability can be estimated by comparing different versions of the same measurement. Validity is harder to assess, but it can be estimated by comparing the results to other relevant data or theory. Methods of estimating reliability and validity are usually split up into different types. What is an example of a […]
Do singers have stronger lungs?
Do singers have stronger lungs? Singing helps strengthen the muscles that are also responsible for posture. 4. Increases lung capacity. By learning to control your breathing, you can increase your lung capacity at the same time. What can someone do to increase their lung capacity? Tips for keeping your lungs healthy Stop smoking, and avoid […]
Can something have more than one type of energy?
Can something have more than one type of energy? Energy comes in many different types, which can be categorised into two basic forms – kinetic and potential. Energy can never be created or destroyed, but it can be transformed from one type of energy to another. What happens if you drop the skater onto the […]
Can you still buy Gros Michel bananas?
Can you still buy Gros Michel bananas? The few countries that still produce the Gros Michel today mostly do so under another name: Thihmwe in Myanmar, Johnson in Cuba, Pisang Ambon in Malaysia. In Hawai’i, it is commercially grown as Bluefields. Why do bananas not taste good anymore? When you break down the artificial banana […]
What are the 3 types of schema?
What are the 3 types of schema? Schema is of three types: Physical schema, logical schema and view schema. What are the 3 types of schema theory? 2.2. 2 Three Types of Schema Schema can be classified into three types: linguistic schema, content schema and formal schema (Carrell, 1984). Linguistic schema refers to readers’ prior […]
What do you know about a substance it you know its temperature?
What do you know about a substance it you know its temperature? In chemistry, we define the temperature of a substance as the average kinetic energy of all the atoms or molecules of that substance. Not all of the particles of a substance have the same kinetic energy. At any given time, the kinetic energy […]
Do heavier objects fall faster?
Do heavier objects fall faster? Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. How do you find velocity with time and height? An object is thrown straight up from the top of a building h feet tall […]