Identifying Dependent and Independent Variables Instructions: For each of the following research designs‚ identify the dependent and independent variables. 1. To investigate the effects of exercise on mathematical problem-solving ability‚ a researcher assigned subjects to one of two groups. One group did 50 jumping jacks and the other group did 200. After exercising‚ both groups did a set of math problems. 2. A researcher hypothesized that talking to plants enhances their growth. To test her hypothesis
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Controlled Assessment ISA (PU 2.5) Light Dependent Resistors (Section 1) 1. Write down your hypothesis. Explain why you made this hypothesis. Hypothesis: When it is day there is more light hitting the LDR and so its resistance decreases and the light turns off. When it is night there is less light so the LDR has higher resistance and the light turns on. Explanation: When light shines on a Light Dependent Resistor‚ electrons are released and the current can get larger. So as the light intensity increases
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Virtual Lab: Dependent and Independent Variables Worksheet 1. ECB refers to: E (European corn borer) a. A genetically engineered plant that is resistant to insect pests b. Edible corn byproducts c. An insect pest that reduces corn yield d. European corn borer e. c and d 2. How many days are required for a corn seed to become a mature plant with maximum weight kernels ready to be harvested? D (about 140 days) a. about 23 b. about 65 c. about 140 d. about 180 3. “BT Corn” refers
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Argumentative Essay In the present situation‚ people use technology to do almost everything for them. They use technology for trivial works like performing household chores to complex actions like executing complicated computer programs. According to my opinion‚ people have become extremely dependent on technology. Nowadays‚ people have laptops‚ eBooks‚ etc. and in some advanced countries like Japan‚ human teachers are being replaced with robot ones. Furthermore‚ we get the latest news from the
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Are We Too Dependent on Computers? Is our society too dependent on computers? I‚ like many Americans today‚ have become reliant on the usage of computers. It influences all aspects of my life by bringing about a new level of convenience. Computers are a part of our everyday lives whether we like it or not. They make simple tasks much easier and allow us to strive to our full potential.However over the years‚ computers have become much more than a tool but necessary part of our lives. They have replaced
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Photosynthesis Essay During the Light Dependent Reactions‚ activity occurs within the thylakoids of the chloroplast. NADP+ accepts two high energy electrons and an H+ ion and then converts into NADPH. This process ultimately traps some of the sunlight in chemical form. Then‚ NADPH is able to carry the energy it absorbs to the rest of the cell. The reaction produces O2 gas and converts ADP to ATP and NADP+ to NADPH. First‚ pigments in Photosystem II absorb light‚ which is then absorbed by electrons
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Society is becoming increasingly dependent on computers and technology for functioning in every day life. Every aspect of our lives has been affected by the infiltration of computers and technology. Computers are used to conduct business from home‚ meet new friends and find old friends‚ maintain communications with distant family‚ and to met out some stress relief after a long day at the office. As more and more people rely on computers to succeed each day‚ it begs the question – are people becoming
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Are We Too Dependent On Our Mobiles? In the media today‚ we all hear a great deal about the perils of modern technology. We now can be addicted to the Internet‚ Facebook and Twitter‚ not to mention the already existent perils like television‚ alcohol and drugs. What isn’t often mentioned is our addiction to cell phones. Maybe nobody talks about it because‚ unlike Twitter and Facebook‚ cell phones are such useful tools for everything from friendship to business. Cell phones have not only become
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and Kate have already observed‚ suggest a possible hypothesis regarding how the mass of a rock changes when placed in water. Identify the independent and dependent variables. If the rock is placed in water‚ then it’s mass will be added to the original mass. The independent variable has to do with the amount of water put onto the rock‚ the dependent variable is the mass of the rock after it has been in the water. 3. Describe‚ in detail‚ a procedure to test your hypothesis. Identify the controlled
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net‚ because they can join it from the PC‚ a smart phone‚ a laptop‚ etc. The mature people are still getting used to the innovations in Information Technology and try to connect their life with computers to be able to follow the current news and the tempo of the dynamic world. The younger generation is much more familiar with the computer technologies and they already cannot imagine their life without computers‚ as they touch upon every sphere of the human life. Computers serve to help people and
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