Light rays strike a reflecting surface. They are then reflected back. You can predict the angle of the reflected light. Imagine a ball bouncing off a surface. Light can do the same thing. That is, assuming the surface is shiny. So how do you know where light will go after it strikes a shiny surface? It depends on how the light initially strikes the shiny object. Light does not always go straight toward a surface. Therefore, not all light bounces straight back. Sometimes, light can hit a surface at an angle. The angle at which it strikes the surface tells us how it will bounce off. While light is different to a ball, they react in a similar manner. Many sports rely on knowledge of reflection. Pool players know a lot about reflection. They take great care when they strike the pool ball. They need it to go to a certain place. They know the angle it will hit the side of the pool table.
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QUESTION: What is needed for light to bounce off a surface?

Water flowing over Earths surface or underground causes erosion and deposition. Water flowing over a steeper slope moves faster and causes more erosion. How water transports particles depends on their size. When water slows down, it starts depositing sediment. This process starts with the largest particles first. Runoff erodes the land after a heavy rain. It picks up sediment. Runoff carries most of the sediment to bodies of water. Mountain streams erode narrow, V-shaped valleys and waterfalls. Erosion and deposition by slow-flowing rivers create broad floodplains and meanders. Deposition by streams and rivers may form alluvial fans and deltas. Floodwaters may deposit natural levees. Erosion and deposition by groundwater can form caves and sinkholes. Stalactites and stalagmites are mineral deposits. They build up in caves as water continues to drip.
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QUESTION: What kind of deposits build up in caves as water continues to drip?

Physical properties include the state of matter. We know these states as solid, liquid, or gas. Properties can also include color and odor. For example, oxygen is a gas. It is a major part of the air we breathe. It is colorless and odorless. Chlorine is also a gas. In contrast to oxygen, chlorine is greenish in color. It has a strong, sharp odor. Have you ever smelled cleaning products used around your home? If so, you have probably smelled chlorine. Another place you might smell chlorine is at a public swimming pool. The chlorine is used to kill bacteria that may grow in the water. Other physical properties include hardness, freezing, and boiling points. Some substances have the ability to dissolve in other substances. Some substances cannot be dissolved. For example, salt easily dissolves in water. Oil does not dissolve in water.
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QUESTION: What do physical properties include?

(CNN) -- Sevilla have sacked coach Manolo Jimenez after their disappointing home draw to bottom-club Xerez on Tuesday extended the club's winless run to seven games. Despite lying fifth in the Spanish Primera Liga table, Sevilla were knocked out of the lucrative European Champions League by Russian side CSKA Moscow last week. Jimenez had also secured a Copa del Rey final against Atletico Madrid but it wasn't enough to save the 46-year-old's job. The club's sporting director Ramon Rodriguez admitted the decision had been difficult but said he had "done what I had to." He told the club's official Web site: "It was an unavoidable situation and we had to find a solution, and the pain that it brings. "Tuesday was the end of the story but the decision comes from the image and dynamics of the team. Without doubt we are grateful to Manolo. He is an excellent professional, he has made all this possible and impossible. However it is obvious that he could not get a response out of the team. "Fortunately we believe that there is time. The growth and the ambition of the club is shown in the change of the manager. We are fighting for important things." Xerez's injury-time equaliser on Tuesday meant Sevilla's last league success was against Real Mallorca back in February. Ironically, it is Mallorca who occupy the much-coveted fourth spot in the table that guarantees Champions League football next season. Jimenez took charge in October 2007 when former coach Juande Ramos left to take over at English Premier League team Tottenham.
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QUESTION:
What was Sevilla's last league success, and where does that team now rank in the Champions League football table?