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C. Temperature and Time B. The apple has more mass than the orange. B. Town B C. Volume of a liquid C. Display data D. Observe and ask questions A. coloring C. D. camouflage B. grass B. Energy pyramid B. Plankton, shrimp, fish, shark D. All of the above A. Rain decreased the temperature. C. The river could overflow and flood the plain. A. The soil is fertile and there is a good water supply. C. It uses food stored in the egg. B. 2, 4, 1, 3 B A B. 1, 3, 2, 4 B A. X D. Only Dick can hear clearly. D. All will show the same weight. B B. The climate was warmer and wetter millions of years ago. A. Mountain K B. A landslide B A. It uses electricity to produce heat. A. On top of the building B. down B. Cheetah and peregrine falcon D. Ball N D A. Chair 1 D D. They are different sizes. D. Birds, trees, worms D. All objects have mass. A. flower D. An apple core. One kind of plant adaptation is color. How does color help a plant survive? A. B. C. D. A plant’s color protects it from enemies. A plant’s color helps it hold water. A plant’s color attracts animals to pollinate it. A plant’s color helps it grow toward the Sun. C. A plant’s color helps attract animals to pollinate it. Which of the following is a natural change to a habitat? A. B. C. D. hurricane pollution people building a house a machine knocking down trees A. hurricane When a habitat changes, it may not have food, water, shelter, or living space for the plants and animals. Which would you expect to happen after this kind of habitat change? A. The plants and animals will not be affected. B. The plants will be fine but the animals will be affected. C. The animals will be fine but the plants will be affected. D. The plants and animals my die or try to move to a new habitat. D. The plants and animals may die or try to move to another habitat. What role do decomposers play in a food chain? A. B. C. D. They return nutrients to the soil. They make food for animals. They are eaten by producers. They return energy to the Sun. A. They return nutrients to the soil. What occurs when water covers land that is usually dry? A. B. C. D. A delta An earthquake A volcanic eruption A flood D. A flood Which Earth materials to crops need to grow? A. B. C. D. aluminum and steel iron ore and copper wood and peat soil and fresh water D. Soil and fresh water Which slow process breaks rocks into smaller pieces? A. B. C. D. erosion gravity weathering deposition C. weathering During erosion, what usually carries loose, broken rocks to new places? A. B. C. D. earthquakes and volcanoes plants wind or water landslides C. wind or water Which process or event changes Earth’s land quickly or rapidly? A. B. C. D. volcanic eruption deposition weathering erosion A. Volcanic eruption What do most rivers flow into? A. B. C. D. a stream or another river a lake or a pond a sea or an ocean a glacier or an ice cap C. a sea or an ocean Where is most of Earth’s fresh water? A. B. C. D. oceans glaciers and ice caps lakes and ponds rivers B. Glaciers and ice caps What are the smallest rock particles that make up soil? A. B. C. D. silt clay humus sediment B. clay What is humus made of? A. B. C. D. tiny bits of rock sand decaying plants and animals clay C. decaying plants and animals Which property can help you identify a mineral? A. B. C. D. mass shape size hardness D. hardness What is luster? A. B. C. D. how a mineral reflects light the hardness of the mineral the color of a mineral the streak a mineral leaves A. how a mineral reflects light What type of fossil is formed when sand containing an imprint formed by a plant or animal becomes a rock? A. B. C. D. tree sap fossil cast fossil mold fossil petrified wood C. Mold fossil How does a cast fossil form? A. B. C. D. when a mold fossil is filled with sediments when a living thing is trapped in tree sap when a bone is preserved in tar when a living thing leaves a mark in sand A. When a mold fossil is filled with sediments What can scientists learn by studying fossils? A. They can learn about the environment of the past. B. They can learn about what will happen in the future. C. They can learn about what ancient plants tasted like. D.They can learn about why club mosses grow in warm, wet weather. A. They can learn about the environments of the past.