Lab Report Essay

designing an experiment, we have to design an experiment and we need to confirm the

The main objective of this experiment is to differentiate between a physical change and a chemical change.

Now I'm going to explain details examples of Chemical change and physical change first let's start with chemical change sugar undergoes through a chemical change when is cooked to make caramel, first the sugar sugar is heat up and this heats makes a reaction and it converts the sugar molecules into different molecules that give caramel it's color and flavor by doing so this is classified as a chemical reaction because it changes the molecules of the

I will purchase all the materials for the experiment and then perform the experiment. I will pour oil in three bowls and then out each detergent in a bowl. Pictures will be taken after each detergent is in a bowl. I will also observe all three bowls after and se which detergent broke up the oil the best. All data will be recorded in the data table.

One way you can show the law of conservation of mass is with ice. First you get a cup put it on a scale and zero it out now drop ice into to and record the weight. After that you wait for the ice to melt and you should see that the weights are almost exactly the same. Another way is to get a plate zero it out on a scale and then put a candle on it and record the weight. After that you light the candle than let the wax become a liquid, then weigh and see that the weigh is the

This article addresses the misconceptions students have about chemical and physical changes that occur. When trying to understand the difference between physical and chemical changes, students often try to look for something that stands out between the two. A few common misconceptions are thinking that all chemical changes have to be a something new formed and physical changes always have to be reversible. This article explains how it is not always the case when it comes to physical and chemical changes. A few examples the article gave was when an egg gets broken and how it is nonreversible but would still be considered a physical change and not a chemical one. Another example the article gave was mixing a drink mix powder and how the substance is now different but nothing chemical really occurred during the process. Therefore, the article explains that relying on these common misconceptions is not the best when trying to teach physical and chemical change.

The purpose of this lab is to study the principles on conservation of energy and conservation of momentum. We used a ballistic pendulum, which determines the speed of a bullet shot from a gun, to shoot a steel ball into a pendulum to create a completely inelastic collision. A completely inelastic collision is when two objects collide with one another, stick together, and move with the same final velocity in the same direction. In a completely inelastic collision, total kinetic energy is not conserved, some is lost producing heat and sound. We determined the initial and final velocity which was then used to calculate the kinetic energy before and after the collision.

In order to answer that problem, this experiment was created. However, before moving forward, several pieces of background information must be covered. The first necessary

The first step is preparing a control condition. A control condition is a variable kept constant in an experiment that serves as a basis to compare data. This allows you to accurately

Kinetic energy is the energy of mass in motion; the kinetic energy of an object is the energy it has due to its motion or movement. Kinetic energy can be stored it can also be transferred from one body to another in a collision.

In our second text, we learned that van Helmont had discovered an example of Conservation of Matter in photosynthesis. He had discovered after leaving a tree in a measured pot of soil after 5 years, the weight of the tree had grown on a huge scale, but the soil had not decreased whatsoever. Van Helmont had thought it was liquids at first but it had actually been the gasses in the air. Another example of the Conservation of Matter is how the carbon dioxide is taken from the atmosphere and then the oxygen is given back after photosynthesis.

It is known that physical components can be used to explain the process of a specific feeling, action, and or thought. Moreover, things made without matter are also able to cause physical reactions from something made of matter such as living things. Through the reaction of coming in contact with something not made of matter, it can be explained through physical processes as to what, why and how it caused this certain reaction to occur.

How does this article relate to your topic or influence the design of your experiment?

In the experiment I did, I used two marbles, one 30cm plastic ruler, one plastic space case, one book and an Ipad to record the times.

An outline of the recommended procedure for an experimental design is shown in Figure 3.1 and briefly explained below.