Weekly Warm-Ups August 17-21

Journal: August 17,2015 Answer the following questions Journal: August 17,2015 Answer the following questions. Explain your response. In an experiment to determine if planaria( freshwater flatworms) are more active in warm water or cold water, which of these would be varied by the experimenter? The volume of the water used The number of planaria The size of the observation container The temperature of the water Sets of 25 green plants and 25 mushrooms were put in cool, dark room for 2 weeks. Each set was watered daily with 50mL of a 0.01% fertilizer solution. Which statement best explains why the green plants died and the mushroom survived? Green plants need more water than mushrooms do. Mushrooms can make their own food in cold temperatures Green plants need light to carry out photosynthesis Mushrooms use fertilizer more efficiently than green plants do.

Tuesday, August 18,2015 Answer the following questions Tuesday, August 18,2015 Answer the following questions. Provide an explanation.. A science class has been observing the population growth of a bacteria species for 18 days. Food was added to the test tube in which the bacteria were grown. The data is shown in the graph. 1. What is the maximum number of paramecium of the test-tube environment that can be sustained as long as food is added? A about 10 paramecia B about 50 paramecia C about 65 paramecia D about 100 paramecia 2. On what day does the colony stabilize? 3. What type of data is being used? Quantitative or Qualitative

Do Now: Define the following terms using your text Do Now: Define the following terms using your text.. Requires teacher signature upon completion. Scientific Method Hypothesis Controlled Experiment Data----(leave space..I will provide) Observations Dependent Variable (responding variable) Independent variable (manipulated variable) Constant (Control) ---(leave space..I will provide) Experimental group ---(leave space..I will provide) Control group ---(leave space..I will provide) Scientific Theory

Wednesday, August 19, 2015 Journal: Answer the following questions Wednesday, August 19, 2015 Journal: Answer the following questions. Explain your response. 1. The result of a scientific experiment is PROBABLY valid if - A most people believe the result is correct. B repetitions give consistent data. C it is based on a hypothesis. D it is done by a world-famous scientist. 2. During a laboratory exercise, a student bumped the table where chemicals were being held. The storage containers tumbled over, and the different liquids spilled onto the table. What is the FIRST thing that other students should immediately do? A Wipe up the liquid with paper towels. B Set the containers upright. C Dilute the spill with water. D Tell the teacher what has happened.

Thursday, August 20, 2015 Answer the following questions Thursday, August 20, 2015 Answer the following questions. Explain your response. 1. A planarian is a flat worm that has a simple nervous system, muscles, and digestive system that extends throughout the body. The picture shows a set of experiments done on planarians. Which of the following conclusions is BEST supported by the results of these experiments? A Planarians reproduce by sexually. B Cells in planarians help them to regenerate. C The nervous system of planarians enables them to grow new cells. D Muscle cells are required for the growth of planarians. 2. What were the scientist trying to identify? 3. Can you identify variables?

Friday: August 21, 2015 Free Write Friday