6. Repeat step 5 four times. Data/Observations: Conclusion: Recall: We did a lab to learn about how the mass of an egg changes when it is put in different substances. Explain: We recorded the masses of two eggs every 15 minutes. One was put in water while the other was put in corn syrup.
2.pour 2 cups of sugar in sauce pan and stir.the solution should look cloudy at first then i will become clear .then keep stirring for 2 minutes 3.After the sugar is dissolved pour the solution into the jar. 4.seed one stick by covering it in sugar.set the non seeded stick aside 5.insert the seeded stick into the center of the lid and cover all holes. 6complete steps 1-4 and insert non seeded stick. For best results let it sit for a week or more (seeded) Observations Day 1(sugar solution made) During the first 2 hours tiny crystals started to form Day 2 The sugar is starting to form Day 3 The crystals are a little bigger the day before Day 4 On the fourth day there is an increase of the amount of
The starch is used to replicate the starch intake from the plants the caterpillar ingests. Since sugars are insoluble, plants convert them to starches to store them. In the first setup, where no amylase is present, there is no passage of starch from the inside of the tubing to the beaker, however, the Lugols is demonstrated to be a small enough molecule to travel across the membrane, demonstrated by the color change of the inside of the tubing from a cloudy white to a dark blue, a sign of reaction between the Lugol and starch. Once the caterpillar eats the starches, the digestive enzyme amylase breaks down the starch into the original, insoluble sugar. The sugar molecule is now small enough to travel across the membrane to the less concentrated area.
The Effects of NaCl and DI water on Potato Cells Abstract: The experiment we conducted gave the result that when a potato has contact with a salt solution, the cells will start to shrink. We did this by cutting up slices of potato and weighed them and recorded their initial weights. We used deionized water and three different concentrations of sodium chloride solutions; 10% NaCl, 15% NaCl, and 20% NaCl. We than placed each potato slice in test tubes with their designated solutions. We let them soak for 20 minutes than we removed them from the test tubes.
After we test it, we find the egg holder is too weak to save the egg. So in the second day lab, we do the adjustments for the new contraption. We use the tapes to reduce the weight of the contraption, and we find the relationship between the dependent variable impulse and the independent variable weight is more weight has more impulse when the contraption hit the ground. We add the support around the egg holder, and we also add a cross under the egg holder to reduce the impulse. We improve the egg holder to a diamond shape container, and the new egg holder perfectly protect the egg from any directions.
Eggsellent Lab Analysis Questions 1. Draw and label two pictures - Initial and Final - showing the movement of food coloring molecules. You must use all of the following words: high concentration, low concentration, diffusion, and cell membrane 1. Draw the egg after it has been in the food coloring for 24 hours. Explain what might have occurred (be sure to explain what conditions had to exist both inside and outside the egg)using all of the following terms: diffusion, semi-permeable membrane, high concentration, low concentration.
Because its density is so high, neutrons spin in the same way that electrons do so must obey the Pauli Exclusion Principle. 6. A pulsar does not pulse, it emits beams of radiation that sweep around the sky as the neutron star rotates, and astronomers detect pulses when they sweep over the Earth. 11. Sometimes in binary systems, mass flows into a hot accretion disk around the neutron star and causes the emission of x rays.
EXPERIMENT DESIGN The constants in this study are: How much water the plant receives How much soil is in the pot How much light the plant receives What the growing temperature is When the seed is planted How many seeds are planted in each pot Where each seed is planted How deep each seed is planted How big the pot is How far from the light the pot is The temperature of the water What time the light is turned off and on The manipulated variable is whether a magnet is being used and where the magnet is placed. The responding variable is whether the plant’s stem and root grow toward the magnet, or away from the magnet. To measure the responding variable I measure how far the plant grows away from vertical. PROCEDURES 1. Gather three of the same size clay pots and label them A, B, and C. 2.
The Active dried yeast is a type of original all-natural yeast that has been used by generations of bread bakers. The yeast activity may decrease if it comes into direct contact with salt or sugar. When all ingredients are mixed together, the yeast will converts simple sugars into carbon dioxide, alcohol and water. The CO2 expands in the dough to produce gaseous bubbles. All these bubbles cause the bread to rise.
The energy released is in the form of increased kinetic energy of the product particles and any radiation emitted. The energy released in a nuclear fission is very much larger compared to the energy released in a chemical reaction. Spontaneous natural nuclear fission reactions very rarely occur. Nuclear fission reactions are normally initiated by bombarding the nucleus with slow neutrons or thermal neutrons of low energy of about 10-2 eV. Nuclear fussion: Nuclear fusion is the process in which two light nuclei combine to form a heavier nucleus.