learned about how salt affects the freezing point of water. In my science project I wanted to see if salt affected the freezing point of water. I started by doing some experiments. My first experiment was whether tap water or salt water would freeze first. I first started by mixing up the salt water warming it for one minute and warming the tap for one minute also. My second experiment was what ice cube would melt fastest. I started by getting two bowls. Two ice cubes‚ and salt. I began by sprinkling
Premium Oxygen Sulfur dioxide Sulfur
Year 8 The Setting of the Gospels Ned Mulholland - Miss Koprivanic Task 1 / Part 1 STORYBOARD SCAFFOLD Matthew 21: 12-17 Jesus Goes to the Temple 12 Jesus went into the temple and drove out all those who were buying and selling there. He overturned the tables of the moneychangers and the stools of those who sold pigeons‚ 13 and said to them "It is written in the Scriptures that God said‚ ’My Temple will be called a house of prayer.’ But you are making it a hideout for thieves
Premium Gospel Gospel of Matthew New Testament
The Effect of Light Intensity The effect of different light wavelengths was tested in the following experiment. The rate of photosynthesis can be affected depending on the light treatment it receives. With the aid of DPIP acting as NADPH in photosynthesis‚ it was possible to observe the reaction as it took place. Samples were created with dark‚ 24 cm‚ 30 cm‚ and 49 cm light treatments. The absorbance was measured in five-minute intervals for each sample and recorded in an appropriate table
Premium Light Wavelength Chlorophyll
Effect of light on Silver Halide Salts Aim: To investigate the effect of sunlight and UV light on silver salts and to identify an application of this reaction. Hypothesis: The compounds exposed to sunlight (which already contains UV light) will decompose. The compounds which are not exposed to light (put in a dark place) will not decompose. Theory: Equipment: * 4 x petri dishes * 1 x glass stirring rod * 0.1 mol/L silver nitrate in a dropper bottle * 0.1 mol/L Sodium chloride
Premium Sodium chloride Ultraviolet Sunlight
Rationale of the study Almost everything these days is powered by electricity‚ and while this has certainly improved the quality of life‚ it has its downfalls as well. Some examples are: its effects on our Earth such as global warming‚ the rising bills caused by using too much electricity‚ and so much more. This is the reason why our group has decided to do a research on alternatives for energy source‚ specifically by means of saltwater or saline solution. We believe that this will help us decrease
Premium Electric charge
Part A: Title: Diffusion Diffusion is the spontaneous movement of particles from where they are more concentrated to where they are less concentrated. For this experiment‚ a 14 cm glass was filled with cold tap water. A drop of red food coloring was dropped in the cup. A stopwatch was used to measure the time it took for the food coloring to get to the bottom of the cup. The average diffusion rate was .78 cm a second. If a different color was used‚ I do not think it would have made a difference
Premium Osmosis Concentration Diffusion
Abstract: This project looks at how the temperature of an experiment can affect its reaction time. The purpose of this experiment is to determine if dissolving reactions are affected by waters temperature. I believe that if the H2O temperature increases‚ then the Alka-Seltzer tablet will dissolve faster because the hot water molecules will move faster colliding with the tablet particles. Water will be the independent variable due to the fact is will always stay in its same form throughout the
Premium Temperature
2‚ but‚ when graphing the alkalise by the boiling and melting point they both follow the same slope‚ it continues to rise just like the results gathered in the example do. 2. Which of the 2 unknown substances was which? How did you figure this out? The two unknown substances were the methanol and propenol because each of them were being tested in this experiment to discover the boiling point of each of these alcohols by analysing each of their temperatures to eventually discover the averages. 3. Explain
Premium Chemistry Temperature Acid
Effects of Water Resources Sarah Wegner SCI/275 July 31‚ 2015 Sandra Babuka Effects of Water Resources 1. Video: Protecting Americans From Danger in the Drinking Water This video describes the dangers of the Chromium 6 in the groundwater supplies in our nation. There is an ongoing controversy over whether or not the amounts of chemical present in the water can still be considered safe drinking water. According to the video‚ nearly 70 million people are drinking water that could be contaminated by
Premium Water Water pollution Irrigation
Temperature Effects on Radish (Raphanus sativus) Root Development Abstract Several studies have been conducted to establish how temperature‚ seed germination‚ and root growth are related. Because temperature plays a main role in many growth processes‚ we decided to focus on how it affected root growth. Radish (Raphanus sativus) seeds were chosen due to their ability to produce a distinct bulbous tuber‚ and their relatively short growing time. Three test groups were placed under different temperature
Premium Germination Radish Temperature