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Daniel P, MSEd, Science |
Science Education
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With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.
, MSEd, Science
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Quizzes Created: 2 | Total Attempts: 312,195
Questions: 10 | Viewed: 312,190


Which part of a plant is responsible for absorbing water and minerals from the soil?

Answer: Roots 
Leaves are primarily responsible for photosynthesis, not for absorbing water and minerals. The stem transports water and nutrients within the plant but is not the main site of absorption. Roots have specialized structures, such as root hairs, for absorbing water and minerals from the soil. Flowers are involved in reproduction and do not play a significant role in absorbing water and minerals.

What are the products of anaerobic respiration in yeast?

Answer: Alcohol and Carbon dioxide
During anaerobic respiration in yeast, glucose is broken down into alcohol (usually ethanol/ethyl alcohol) and carbon dioxide. This process, known as fermentation, occurs when there is a lack of oxygen or oxygen is not present. The yeast cells use glucose as a source of energy. The glucose is broken down into alcohol and carbon dioxide. A related process known as fermentation is a common process in the production of alcoholic beverages such as beer and wine.

What device records the distance traveled by a vehicle?

Answer: Odometer
The odometer is a device that records the distance traveled by a vehicle. It is typically located on the dashboard on the driver’s side of the car and displays the total number of miles or kilometers that the vehicle has traveled since it was first put into use. The odometer is an important tool for keeping track of the mileage on a vehicle, which can be useful for maintenance purposes, determining fuel efficiency, and calculating depreciation. It is different from a speedometer, which measures the current speed of the vehicle, and from a manometer and moto meter, which are not related to measuring distance traveled.

What is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen?

Answer: Photosynthesis 
Photosynthesis is the process by which green plants, algae, and some bacteria use sunlight to synthesize foods with the help of chlorophyll pigment. During photosynthesis, carbon dioxide and water are converted into glucose (a form of sugar) and oxygen. This process is fundamental to the survival of most life forms on Earth, as it produces food and oxygen, both of which are essential for life. Respiration is a different biological process involving the release of energy from food/sugar, fermentation is a metabolic process that doesn't involve sunlight, and germination is the process of a seed sprouting into a plant.

What changes in an indicator that helps people driving cars?

Answer: Color
An indicator is useful based on changes in color because it can provide visual cues or signals about a change in a substance or a reaction. Color changes can indicate the presence or absence of certain chemicals, the completion of a reaction, or the occurrence of a physical or chemical change. Indicators are often used in chemistry and biology experiments to determine the pH level of a solution or to detect the presence of specific substances. By observing color changes, scientists can gather important information about the properties and behavior of substances.

What instrument is used to check temperature?

Answer: Thermometer
A thermometer is used to check the temperature. It is a device that measures the temperature of a substance or an environment. It consists of a glass tube filled with a liquid, usually mercury or alcohol, that expands or contracts with temperature changes. The expansion or contraction of the liquid is indicated by a scale on the thermometer, allowing the user to read the temperature. Thermometers are commonly used in various settings, such as in homes, laboratories, and medical facilities, to monitor and control temperature.

Which mirror is used for side view in vehicles?          

Answer: Convex
Convex mirrors are used for side view in vehicles because they have a wider field of view and provide a larger image compared to concave mirrors. This allows the driver to see a larger area and objects that may be in their blind spot. The convex shape of the mirror causes light rays to diverge, resulting in a wider view. Additionally, convex mirrors also help to reduce the distortion of the image, making it easier for the driver to judge the distance and size of objects.

A merry-go-round is an example of what kind of motion?

Answer: Circular
A merry-go-round is an example of circular motion. It involves objects moving in a circular path around a central axis or point, typically in a circular and repetitive manner. Straight motion does not describe a merry-go-round because this ride does not move in a straight line.

What is the primary function of chlorophyll in plants?

Answer: To absorb sunlight for photosynthesis
Chlorophyll is a vital pigment found in the chloroplasts of green plants and is crucial for photosynthesis, the process by which plants convert light energy into chemical energy. This green pigment absorbs sunlight, specifically capturing light in the blue and red wavelengths most effectively, while reflecting green light, which is why plants appear green. The absorbed light energy is then used to convert carbon dioxide (CO2) from the air and water (H2O) from the soil into glucose and oxygen.

What is the role of the mitochondria in animal cells?

Answer: To convert glucose into energy
Mitochondria are often referred to as the powerhouses of the cell. They are specialized organelles within animal cells that play a critical role in converting the energy stored in glucose into ATP (adenosine triphosphate) through a process known as cellular respiration. ATP is the main energy currency of cells, used to power various biological processes such as muscle contraction, nerve impulse propagation, and chemical synthesis.
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