Ged prep questions and answers.

What are the two types of cell Prokaryotic cell and eukaryotic cell I put a Pop-Tart in the toaster. Electrical energy is transformed to thermal energy to make my Pop-Tart hot. Based on the Law of Conservation of Energy, once my Pop-Tart starts to cool, is energy lost? Energy cannot be created or destroyed At a constant velocity, a 5kg bag of cement is pulled straight up a 7m wall. How much work is done by the puller? (Gravitational pull is 9.8m/s2, W(J)=F(N)*D(m) 343J What are the three phases or states of matter? Liquids solids and gas Iron+ Oxygen->Iron Oxide (Rust) 2Fe+30₂ -> Fe₂O₃ Iron Oxide, formed from Iron and Oxygen, is a new: Compound A fish swims through the water by using its fins to push water backwards. Pushing water backwards propels the fish forward through the water. This most nearly fits which of Newton's Laws? Newton's third law. For every action, there is an equal and opposite reaction Researchers want to conduct a study using random sampling. What is random sampling? Individuals are randomly selected. Every individual has the same probability of being selected Your body turns food into sugar by an initial chemical reaction from chemicals in your Saliva Cindy wants to figure out if daisies grow faster in cold weather or in hot weather. She puts one daisy in the fridge and one outside in the sun. What is the problem with Cindy's experiment? Too many uncontrolled variables Where does energy originate from? The sun Energy is changed from radiant energy to chemical energy by Producers In this experiment, three of the same type of plants were grown in identical circumstances. The only factors that changed were that one plant was given coffee, one Miracle grow, and the other nothing (control). The plants were then measured each month to see how tall they were in inches. What was the purpose of the experiment? To see whether coffee or miracle growth would make a plant grow taller In this experiment, three of the same type of plants were grown in identical circumstances. The only factors that changed were that one plant was given coffee, one Miracle grow, and the other nothing (control). The plants were then measured each month to see how tall they were in inches. Independent variable: adding coffee and/or Miracle Grow. Dependent variable: the height of the plant Atoms, Molecules, Cells, Tissues, Organs, Organ Systems, Organism The organization of life Seasons on Earth are caused by: The position of earth as it orbits the sun An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer. When the moon passes between the sun and the earth Earth has a natural satellite. True or false True the moon Tides are caused by: The pull of gravity There is risk of damaging the carbon cycle (Global Warming), by: Releasing more carbon into the environment