1/17/20 Describing Substances

This week we worked to understand the types of matter, how to separate the components of a mixtures using physical properties and to write chemical formulas using Avogadro's law the law of conservation of matter. Avogadro's law states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. One way to state the law of conservation of matter is that the number of atoms of each element that you start with in a chemical reaction (reactants) must be the same number you end with (products).
Image result for law of conservation of matter chemical reaction

Image result for law of conservation of matter chemical reaction

Comments

1/13/20 Capstone Experiment and Types of Matter

Today we considered the following question as we finalized our capstone experiment design: “What would someone have to do prove my hypothesis?” We also completed a debate as to whether apple juice and Gatorade our pure substances using kialo-edu.com . The class concluded that neither are pure substances because they are both made of multiple substances.

2/18/20 Walk This Way - Position vs. Time Graphs

This week we have been working on finishing up our battery-powered vehicle experiment reports. We also have been making position vs. time graphs from word descriptions and vice versa. Today, we used a motion detector to create a position vs. time graph of our own motion.

"When a student first approaches a problem, success hinges on his/her ability to maintain an awareness of what decisions he/she is making and why he/she is making them." Sam Rhodes Here is the problem we tackled today: A student leaves the PAC at position -15.2m at 8:27 AM. She enters Senora Olsen's classroom at 8:31 AM at position 32.0 m. What was her average velocity? UNDERSTAND - Draw a diagram. PLAN - Use an equation (v=change in position/time) or graph (position vs. time). SOLVE - 11.8 m/min REFLECT - Graphs can also be used to solve problems. Record equations before inserting numbers. Include units with all numbers.

KML Physical Science Blog

Search This Blog