Labpaq Scientific Method Essay

Scientists model the manner in which a liquid wets fibers, gaining useful insights for improving glass wool properties. Sandcastles are a prime example of how adding a small amount of liquid to a granular material changes its characteristics

Next, 1to 2 drops of 6M HNO3 and 5 drops of 0.1M AgNO3 are added and the solution is stirred. The observation is recorded. - In the same tube, 6M NH3 is transferred drop after drop and is stirred until a change happens. The reaction is then recorded.

What happens to the mass of the diced potatoes when submerged in varying concentrations of salt solutions and water in 10 minute intervals? This experiment will compare the mass of the diced potatoes submerged in distilled water, 1% salt solution, 5% salt solution, and 10% salt solution respectively in 10 minute intervals.

If the scientists add salt to pure water, then pH level of the water will drop turning the water acidic. In the experiment, The scientist plan for this experiment is to have pure water with a pH level of 7 ( Neutral ) and use pH strips to make sure the water level is neutral. Then, they begin to add salt and stir or wait for it to dissolve. Once it is dissolved, the scientist shall enter another pH strip and check the pH level. The scientist shall conduct this experiment at least three times with the same amount of water, and the same amount of salt.

The scientific question in this experiment is “What temperature will grow the crystal with the greatest mass?” The hypothesis is “If salt crystals are grown at room temperature, then they will have the greatest mass”. The independent variable is water temperature. The dependent variable is crystal mass. The control group is room temperature water. Some control variables are cardboard brand, type of salt, and amount of salt To conduct this experiment, follow these procedures. Prepare a supersaturated solution by adding 11 tablespoons of salt. Cut out three cardboard square of the same size.Then soak the squares for five minutes. Put one piece of cardboard in the freezer, one piece somewhere at room temperature , and one in the oven. Take all

1. Describe four factors that influence ocean currents. The wind, the biggest factor in the creation of surface currents, salinity and temperature differences, affecting density, earth's rotation, when a rotating object collides with another moving force, it created a new motion, solar heating and bottom topography in which the moving water “drops out” moving the water downward. 2.

We wanted to know where we could find the cleanest snow. We tested this hypothesis by testing the snow pH and making visual observation. We decided to do a science place-based lesson since they were in the mist of their science fair preparations. This lesson allowed us to go out to the local community to collect the samples. We were able to visit the ocean, and several areas around the village. Before we started the experiment, we ask the kids did their families collect snow for drinking water. Many of the students did indicate that they did. We ask them where did they collect the snow, but many couldn’t give me a definite answer. This experiment would help explain why certain areas were better collecting place for drinking water. We did this experiment over several days, so the students were quite invested into what we would find. We did find that the water near some buildings and further out in the ocean had the cleanest snow. We hypothesized this may be so, since these areas are rarely touched by vehicles, such as, snow-machines and 4-wheelers. It was a good way for the students to see where some of their drinking water was coming from and why so many residents chose a particular place. We were happy to hear that this experiment would be featured in the Shaktoolik’s science

This action will thereby lead to an increase in the actual concentration of the dissolved salt. The mass of each 50ml beaker which was used for calculating the mass of dissolved person recording the weight of one beaker and take it as a default mass, this might add to the errors achieved during this experiment which might lead to false results that cannot be used

Sand is tan in color and has a variety of particle sizes. The larger particles in sand are rough seashell pieces or smooth pebbles whereas the smaller particles are soft and felt like what could be described as “pure sand”. Furthermore, when water is added to sand, it becomes a suspension. A suspension is a mixture in which particles of a material are dispersed throughout but are heavy enough to settle out. Suspensions are examples of heterogeneous mixtures too.

It takes time and pore space for sediment to lithify into a rock. The texture of beachrock sediment consists of coarse silt, sand, and pebbles (1 pg. 2). Based on the sediment textures above, there are different ranges of rocks that can be found in beachrock sediment. These include igneous, sedimentary, and metamorphic rocks. Different types of sediment that can be found in beachrock formations. Terrigenous sediment and carbonates are the two main types found. Terrigenous sediments can be described as land derived broken down rocks causes by physical and chemical weathering processes. For example, based on studies from K.O. Emery and Doax C. Cox, beachrock sediment from Oahu, Hawaii consists of broken and disarticulate calcareous parts with

1. What happened to the iodine solid in the water? Did it dissolve? Why do you

Before disturbing the reaction, it was at equilibrium. After adding heat, changing concentrations, etc., according to Le Chatlier’s Principle, the compositions of the product changes in order to

Sand is insoluble and salt is soluble in water. A mixture of salt and sand can be separated by dissolving, filtering and evaporating, to determine the quantitative composition.

Clay is powdery grained rock occurring naturally. It is formed by the gradual chemical weathering of larger rocks. In this case could be the above-discussed rocks.

This is to certify that the major project-2 report entitled “STUDY OF SHEAR BEHAVIOUR OF SAND BLENDED WITH SILT” is a bona fide record of work carried out by Arvind Kumar (Roll No. 2K13/GTE/04) under my guidance and supervision, during the session 2015 in the partial fulfillment of the requirement for the degree of Master of Technology (Geotechnical Engineering) from Delhi Technological University, Delhi.