5th Grade Science 4th & 5th Grade Science Review 5th Grade Physical Science 1) During a chemical change, atoms rearrange to form products with __________________________________. 2) Name several examples of a chemical change. 3) During a chemical reaction, a ____________________ is formed. 4) What are signs of a chemical change? Different properties. 5) All matter is made up of___________. Atoms. 6) Atoms combine to form ___________. Molecules. 7) What are the properties of metals? Conduct heat & electricity, malleable (bendable), ductile (can be made into wires). Aluminum (Al), Iron (Fe) Nickel (N), Copper (Cu), etc. Pure metals are represented on the Periodic Table of Elements Steel and brass are not pure. They are made of more than one metal. They are alloys. Matter that has only one type of element. 8) Give examples of pure metals. 9) Give examples metals that are not pure. 10) What is an element? Rust, burning, cooking (popcorn, cakes, cookies), and reactivity. New substance. Heat, color, or bubbles. 11) How are elements on the Periodic Table organized? Metals, nonmetals, semimetals (metalloids) *similar properties and increasing atomic number. 12) What instrument do scientists use to view atoms and molecules in well ordered arrays? 13) How can you separate salt and water? Electron microscope. 14) What are some common chemical formulas? 15) What is a physical property? 16) What is an example of a chemical property? Using a heat source, you can evaporate the water and the salt would be left behind. CO2 (carbon dioxide), NaCl (table salt), H2O (water) Density, volume, color, texture, size – mass, weight, solubility, odor (smell), taste. Combustibility and reactivity. 1 5th Grade Science 17) What are the properties of sugar? 18) What are the properties of water? 19) What are the properties of helium, oxygen, nitrogen, or carbon dioxide? 20) All living things have the element _________. 21) What are the properties of table salt (NaCl)? White, solid at room temperature, has mass and density, is sweet, is soluble in water. Colorless, liquid at room temperature, has mass, density, and is tasteless. Colorless, gas at room temperature, has mass, density and is tasteless. Carbon (C). White, solid at room temperature, has mass, density, taste and is soluble in water. 4th Grade Physical Science 22) What do you need to build a circuit? Wires, batteries, and bulbs. 23) What is a series circuit? A series circuit is a circuit where there is only one path from the source through all the loads and back to the source. This means that all of the current in the circuit must flow through all of the loads. 24) What is a parallel circuit? A parallel circuit is a circuit in which there are at least two independent paths in the circuit leading get back to the source. In a parallel circuit, the current will flow through the closed paths and not through the open paths. 25) What is a compass? 26) How does a compass work? A compass is a navigational instrument for finding directions on the earth. It consists of a free floating magnetized pointer that aligns itself accurately with Earth’s magnetic field, which is of great assistance in navigation. A compass detects Earth’s magnetic field. 2 5th Grade Science 27) What is an electromagnet? 28) What are electromagnets used in? 29) Do electrically charged objects repel or attract each other? 30) Magnets with two like poles will _____________ each other. 31) Magnets with unlike poles will _____________ each other. 32) Magnets have a _________ pole and a _____________ pole. 33) Where is Earth’s magnetic field the strongest? 34) Electrical energy can be converted into what? An electromagnet is a type of magnet in which the magnetic field is produced by the flow of an electric current through wire that wrapped around an iron core. Electric motors, generators, doorbells, earphones. Repel (move away) and attract (come together). repel attract North and South At the north and south poles. Heat, light and motion. Examples include: heater, air conditioner, fan, light bulb, hair dryers, etc. 5th Grade Life Science 35) How does blood circulate through the body? 36) We release _____________ as waste in our lungs. 37) We breathe in ______________. 38) Where does the exchange of oxygen and carbon dioxide take place? 39) What are the steps of digestion? Oxygen rich blood leaves the heart, and it travels through the body in the arteries to the capillaries. The capillaries exchange oxygen and waste in the cells, and then the oxygen lacking blood returns to the heart in the veins. This blood goes to the lungs to get oxygen, returns to the heart, and the process starts again. Carbon dioxide (CO2). Oxygen (O2) Lungs and cells. Mouth – teeth, tongue and saliva break food into smaller pieces. Then the food is pushed to the back of the throat and down the esophagus to your stomach. The 3 5th Grade Science 39) Continued --- Steps of digestion 40) Where does cellular waste (ammonia) get removed? 41) Kidneys convert (change) urea to ____________. 42) Urine is stored in the _____________. 43) What tubes transport water and minerals in vascular plants? 44) What tubes transport food in vascular plants? 45) Plants use ____________ and ____________ and ___________. 46) Plants make ______________ and release _______________. 47) Plant and animal cells break down sugar to obtain energy resulting in _____________ and _________________. stomach breaks the food down even further, making it ready for the small intestine. Next, the small intestine allows nutrients to be absorbed through the villi and into the bloodstream. Lastly, the large intestine (colon) absorbs water and minerals and any waste products are release from your body through the rectum. Steps of digestion are: 1) mouth, 2) esophagus, 3) stomach, 4) small intestine, 5) large intestine (colon), rectum. Kidneys filter your blood. They remove cellular waste products. Urine. Bladder. xylem phloem Carbon Dioxide (CO2), water (H2O), and sunlight. Sugar and oxygen. Carbon dioxide (CO2) and water (respiration). 4th Grade Life Science 48) What is the primary source of matter and energy entering most food chains? 49) What is an herbivore? plants 50) What is a carnivore? A living thing that only eats animals. 51) What is an omnivore? A living thing that eats both plants and animals. A living thing that feeds on dead plant and animal matter. Yes. 52) What is a decomposer? 53) Do producers and consumers compete with each other for resources in an ecosystem? 54) Name several decomposers. A living thing that only eats plants. Fungi, insects, and microorganisms. 55) What do decomposers recycle? Matter from dead plans and animals. 56) What two things are in an ecosystem? Living and nonliving things. 4 5th Grade Science 57) Can all plants and animals survive in 57) all environments? No, depending on their adaptations, some survive better than others. 58) What do plants depend on animals for? 58) continued 59) Animals depend on plants for ____________ and ______________. 60) Most microorganisms do not cause disease and many are instead _________________. Seed dispersal (spreading of seeds), and pollination. Food and shelter. Beneficial. 5th Grade Earth Science 61) Where is most of Earth’s water located? 62) Explain the water cycle. 63) Water vapor forms _______________. 64) Is fresh water in limited supply on Earth? 65) What cause wind (convection currents)? 66) What are the two types of wind? Oceans (salt water) Evaporation, condensation, and precipitation. Clouds and fog. Yes. Most of Earth’s fresh water supply is frozen on glaciers. Although water is recycled through the water cycle, we use water up more quickly than the amount of time it takes for water to be recycled through the water cycle. Uneven heating of the earth’s surface. Global (prevailing) winds and local winds. 67) What causes a hurricane? The formation of a hurricane requires two key ingredients: heat and moist air. In the summer and early fall, masses of air heat up over warm ocean waters and absorb moisture, creating the conditions that generate a hurricane. Air flow in a hurricane spirals around the center or eye of the storm. The eye of a hurricane is deceptively tranquil (peaceful), while the strongest winds and heaviest rains occur in the region surrounding the eye. 68) What causes a tornado? Tornadoes form inside thunderstorms when a cold front or a line of hot, dry air collides with warm, humid air and winds create a horizontal spinning effect. Strong updrafts then pull the warm, moist air upward and create a giant vertical 5 5th Grade Science 68) continued 69) What damage do hurricanes and tornados cause? 70) What is a cold front? 71) What is a warm front? 72) What type of weather can you expect in a high pressure area? 73) What type of weather can you expect in a low pressure area? 74) What is a thunderstorm? What causes one? 75) As you move away from the Earth, pressure _____________. 76) What force holds Earth’s atmosphere in? 77) Earth’s atmosphere exerts a pressure and at any point it exerts this pressure ___________ in all directions. 78) The sun is ___________. 79) The sun is made up of _________ and ______________. chimney of rotating air. Lost and damage to property, flora & fauna (plant and animal life, and human life). A cold front is defined as the transition zone where a cold air mass is replacing a warmer air mass. Cold fronts generally move from northwest to southeast. The air behind a cold front is noticeably colder and drier than the air ahead of it. When a cold front passes through, temperatures can drop more than 15 degrees within the first hour. A warm front is defined as the transition zone where a warm air mass is replacing a cold air mass. Warm fronts generally move from southwest to northeast and the air behind a warm front is warmer and moister than the ahead of it. When a warm front passes through, the air becomes noticeably warmer and more humid than it was before. Clear skies, nice, fair weather. Cloudy, stormy skies. A thunderstorm is a storm with rain, wind, lightning and thunder, and sometimes even hail. This type of storm begins to form when warm, humid air moves upward rapidly. The sun heats an area on Earth’s surface, which then warms the air mass above it. decreases Gravity Equally This balloon demonstrates how air (gas) pushes in all directions inside of it equally. An average size star. Helium (He) and hydrogen (H). 6 5th Grade Science 80) The sun is the ____________ of our solar system. 81) How do planets stay in orbit? 82) The sun is the ________ body in our solar system. 83)Our solar system includes _________ Center There is a balance between inertia (the tendency of something to continue to do what it is doing) and gravity. largest Earth, the moon, the sun, eight other planets and their satellites, asteroids, and ___________________________________. comets. 84) The path of a planet around the sun is The gravitational attraction between the due to ___________________________. sun and the planet. 4th Grade Earth Science 85) What is igneous rock? 86) What is sedimentary rock? 87) What is metamorphic rock? Igneous rocks are called fire rocks and are formed from cooling lava either underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rocks. Igneous rocks are also formed when volcanoes erupt causing the magma to rise above the earth’s surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above the ground. For thousands- even millions of years- little pieces of our earth have been eroded (broken down) and worn away by wind and water. These little bits of our earth are washed downstream where they settle to the bottom of the rivers, lakes, and oceans. Layer after layer of eroded earth is deposited on top of each. These layers are pressed down more and more through time until the bottom layers slowly turn into rock. Metamorphic rocks are rocks that have “morphed” (changed) into another kind of rock. These rocks were once igneous or sedimentary rocks. How do sedimentary 7 5th Grade Science 87) Continued 88) Explain the Rock Cycle. 89) How can you identify rock forming minerals? and igneous rocks change? The rocks are under tons and tons of pressure, which fosters heat build up, and this causes them to change. If you examine metamorphic rock samples closely, you’ll discover how flattened some of the grains in the rock are. The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock. Use a table (Moh’s Hardness Scale) 90) What reshapes earth? Waves, water, wind, and ice 91) ________________ causes slow changes on our planet, Earth. 92) _______________________ cause rapid changes on our planet, Earth. 93) What causes rock to break into smaller pieces? 94) What erodes (breaks down) landforms? 95) What is weathering? Erosion 96) What is transport? It is the movement of eroded material by wind, water, or ice. It is when the process of erosion stops and the transported particles fall out of the transporting medium and settle on a surface. 97) What is deposition? Landslides, volcanic eruptions, earthquakes, etc. Freezing and thawing and the growth of plant roots. Wind and water. The break down of rock to form sediment. 4th & 5th Grade Investigation and Experimentation 98) How do you classify (organize) objects Physical properties (what it looks like and organisms? texture, smell, size, shape, etc.) and / or chemical properties.(what it is made up of) 99) Are all questions testable? No. Testable questions require variables and repeatable investigations. 100) What is an independent variable? (manipulated variable) 101) What is a dependent variable? (responding variable) An independent variable is the one component of an experiment that is changed during the experiment. A dependent variable changes in response to an independent variable. 8 5th Grade Science 102) What instrument is used to measure temperature? 103) What instrument is used to measure air pressure? 104) What do you use to measure length in science? 105) What do you use to measure weight in science? 106) What do you use to measure mass in science? 107) What is a graduated cylinder used for? 108) What is a hot plate in a science lab used for? 109) How can your record data? Thermometer Barometer A meter stick. A scale A balance. Measuring volume. Heating and evaporating liquid. Using charts, tables, graphs, and diagrams, etc. *The metric system is used for measurement in science. 9