I predicted that the more the concentrated the alcohol solution was the mass would increase because I thought the membrane would let alcohol through which would cause the egg to expand. Methods - 1st: Create a detailed drawing of what you plan to build. Materials will vary depending on your container. The objective of this project was to create a structure that will protect a raw egg and prevent it from breaking when being dropped from a minimum height of two meters. On Day 1, the main question we answered was what happened to the egg when it was placed in vinegar? Prior to the trials at the set heights, there seemed to be multiple structural designs that would suffice as an egg protecting or slowing agent. In your design, you should choose one or two variables and test the results of this variable on your crate.
The group discusses the analysis and work together to individually complete each sheet. He already had the momentum in the one direction, and adding on to it throws him off balance. Gravitational potential energy is the energy possessed by the objected due to earth's gravity. One flaw that could have been improved on was more even distribution of straws surrounding the egg compartment, rather than overbuilding on one side. The materials of my project are cardboard, tape and a hot glue gun. Purpose - This experiment is designed to review these forces by completing an egg drop lab. Mullins Date: January 20, 2011 Introduction This lab was designed to explain the different things osmosis does.
Begin by explaining the process and handing out eggs to the students. Have an adult drop a packaged egg from a predetermined height as you time how long it takes to hit the ground. Also responsible for navigating to the websites identified by the instructor to check for resources explaining the outcomes of their trials; 3. Here is a your child or students can use to plan out their designs. I love all the critical thinking involved in this science activity, but my favorite part is the excitement kids feel when taking part! Student: Let me go ask my lab partner. If there are five team members the fifth person will be the reporter.
Some of the feature of the container was the square block so no matter where it hit it would have the same amount of stuffing. In order for this to happen the vinegar will make the eggs shell disappears. For example, if you want to see whether an egg placed in a plastic container filled with water will survive a drop, use a food storage container with a lid that snaps shut. Materials Manager - the person whose birthday is the nearest in the future. Include the mass of your project with the egg. The general idea is to have students design a container that will allow an egg to safely fall from varying heights without breaking. Meaning if there was more oxygen on one side of the membrane and the membrane was permeable to oxygen, the oxygen would pass through to the side of less oxygen.
Because my school has 45 minute periods, we can't do it all in one class period. For example when we thought about isotonic solution you would think of a normal looking egg, and when you thought of hypotonic you would think of a huge and egg that is basically about ready to explode. I use this project as a way to make the mathematics part of physics relevant to my 7th graders. Drop each ball from heights of 20 cm, 40 cm, 60 cm, 80 cm, and 100 cm. Following the concluding drop, each of the groups will review the results and hypothesize why the mechanisms performed as well or poorly as they did. The independent variable of this experiment are the eggs when they are in their hypotonic and hypertonic solution state. This could easily be prevented by taping the egg to the straws, but one of the guidelines outlawed this, only allowing the egg to be held to the structure by mechanical means only.
A decent hypothesis or prediction one could develop before any experimental trials would be as follows. Gravity causes falling objects to accelerate at a rate of 32. Hypothesis - If an egg is dropped from a height of 5. They are calculating mass, speed, velocity, momentum, force, and acceleration and having fun at the same time. Cereal and Peanut Butter: The cereal and peanut butter provided the give that our egg needed.
As long as it falls onto a reasonably forgiving. I loosely rolled each piece of cardboard and taped them so that they would not roll open. Sorry, but copying text is forbidden on this website! At its most basic level, an egg drop experiment challenges physics students to create containers that protect falling eggshells from breaking. For example the isotonic solution was only about 83. All the failing designs possessed at least one of the mentioned flaws. After collecting materials over a few days, students were able to work independently, in pairs or in small groups to design a contraption to protect their raw egg. Calculate the velocity, momentum, acceleration, and force of your contraption.
I hypothesized that it would gain mass because of how thick the syrup solution was. Checker - the person to the right of the materials manager; makes certain all tasks are carried out correctly, answers team questions and seeks out assistance when team requests it. Below is a picture of a semi successful egg protection structure. While moving downwards, the force of gravity is pulling the egg down. The egg can easily slide in out of the holder, but not easily enough to fall out once a force is applied. An airbag is an object used in the automobile to minimize the effect of force on the car in a collision. Made predictions regarding motion, acceleration and air resistance.
This year we changed the rules up a bit and eliminated a few materials the kids usually use in their egg contraptions- no boxes and no battery powered items. We might have added too much corn syrup and water but I don't think that it affected the egg because it was already drenched in it anyways so a little extra more won't hurt it. It was definitely a successful lesson! If you hold an egg, the forces you are applying are equal and balanced, canceling out the force of gravity. Osmosis and the Egg Lab Report By: N. Errors that could have occurred were miscalculation, incorrect information, wrong time, wrong measurement, etc.