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A student recorded the temperature of a beaker of water each minute as it was heated over a flame. What is the best way to show the change in the water’s temperature over time? A. Circle graph B. Line graph C. Bar graph D. Double-bar graph

What evidence could be used to support the idea that Earth’s surface changes over time? A. Weather predictions B. Fossils of seashells found in dry areas C. Soil samples taken from one location on one day D. Charts showing the population of bird species in an area over three years

Look at the table with daily high temperatures. Based on this information, what was the most likely high temperature for July 5, 2001? A. 90º F B. 90º C C. 85º F D. 83º C Date July 1, 2000 July 2, 2000 July 3, 2000 July 4, 2000 July 5, 2000 July 1, 2001 July 2, 2001 July 3, 2001 July 4, 2001 High Temperature 90º F 91º F 89º F 88º F 90º F 85º F 82º F 85º F 83º F

A student said that cutting down the trees in an ecosystem harmed other organisms in the ecosystem. What information would help the student support this idea? A. Information about pollution in the area B. Data that shows a decline in populations of living things in the ecosystem after the trees were removed C. Data that shows an increase in populations of living things in the ecosystem after the trees were removed D. Data that shows no change in populations of living things in the ecosystem after the trees were removed

Plant Height (cm) A student investigated how fertilizer affected the growth of bean plants. What conclusion can she make using the data from her experiment? Plant with Fertilizer A 25 20 15 Plant with no fertilizer 10 5 2 3 4 6 8 Day 10

What is the main reason scientists use microscopes? A. To see things in space B. To see things that are too small to be seen with our eyes C. To measure the weight of very small things D. To calculate the age of things

Looking at card 6. What is the temperature shown on thermometer? A. 25º C B. 20º C C. 30º F D. 25º F

Looking at the graph on card 8, which liquid heats at the slowest rate? A. Liquid A B. Liquid B C. Liquid C D. Liquid D

Which tool would be the best to measure the distance a toy car traveled during an investigation in the classroom? A. Compass B. Stopwatch C. Meter stick D. Calculator

In an investigation, you need to measure the length of the leaves on several kinds of trees. Which tool would be most useful in your investigation?

As Earth rotates on its axis, energy from the sun heats Earth’s surface. Some parts of Earth’s surface are heated more than others. What is caused by the sun’s uneven heating of the Earth’s surface? A. Floods B. Winds C. Earthquakes D. Droughts

Some farmers leave dead crop plants in the field over the winter. What does this prevent? A. Rock formation B. Soil erosion C. Nitrogen fixation D. Soil formation

Ocean waves pick up sand soil from the shore. What is this process called? A. Chemical weathering B. Erosion C. Deposition D. Sediment

During which phase of the moon does the moon appear completely dark when observed from Earth? A. New moon B. Full moon C. Waxing crescent D. Waning crescent

Why are there more hours of daylight in the summer than there are in the winter? A. Because of Earth’s tilt on its axis as it revolves around the sun B. Because of the relative positions of Earth and the moon C. Because of Earth’s rotation on its axis D. Because of the gravitational pull of the moon acting on Earth’s surface

If you want to wrap a can of fruit juice so it stays cold during soccer practice, what type of material would be your best choice? A. A material that is a good conductor of electricity B. A material that is a good insulator of electricity C. A material that is a good insulator of heat D. A material that is a good conductor of heat

How could you separate a mixture of sand small pebbles?

Some appliances plug into wall outlets. What kind of energy do these appliances use? A. Light B. Chemical C. Heat D. Electrical

In a circuit, what is the purpose of a battery? A. To serve as a source of electricity B. To insulate the circuit C. To carry sound D. To produce vibrations

This diagram shows what happens to a light ray when it strikes a mirror. What is happening in this diagram? mirror

Humans cut down forests to make room to grow crops. This is an example of humans changing the environment to meet which need? A. Clean drinking water B. Healthy food C. Shelter from the weather D. Clean air to breathe

What type of leaves would you most likely find on a plant that grows in a very dry climate? A. broad, flat leaves B. large leaves with a distinctive shape C. leaves that are small D. wide leaves with a large surface area

Which of the following describes an adaptation that allows a living thing to meet its need for food? A. A fish’s gills B. A giraffe’s neck C. A plant’s flowers D. An insect’s exoskeleton

Birds survive in many different habitats. Penguins are birds that live in a very cold climate and swim rather than fly. All of the following are adaptations found in birds. Which adaptation allows penguins to survive and reproduce? A. Hollow bones B. Large wingspan C. Lots of body fat D. Brightly colored feathers

What would happen to the fish in a river if the population killed the plant life in the river?

When we can see the entire lit half of the moon on Earth, what phase is the moon in? A. New moon B. Full moon C. Crescent moon D. First quarter moon

Through which of these would sound move the most quickly? A. A vacuum B. A liquid C. A gas D. A solid

What would happen to a population of predators if the number of prey in the area increased? A. More of the predators would be eaten, so their population would decrease. B. There would be more competition for food, so the predator population would decrease. C. There would be fewer resources in the area, so the predator population would decrease. D. There would be more food for the predators, so their population would increase.

Which of the following is a benefit of recycling? A. Reducing waste B. Increasing energy usage C. Decreasing use of post-consumer material D. Increasing destruction of resources

What causes sound? A. An object vibrating B. An object’s magnetic energy C. An object’s electrical energy D. An object at rest

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How could you best show information about the locations of different kinds of trees in your neighborhood? A. Bar graph B. Spreadsheet C. Map D. Line graph

Which of the following should be a part of every scientific investigation? A. Using a balance to measure mass B. Using a microscope C. Entering data into a computer database D. Following safety rules

How should you always dispose of chemicals after you complete an investigation? A. As instructed by your teacher B. Pour them down the sink C. Pour them back into the bottle they came from D. Mix all of the leftover chemicals together

Which of the following is an important part of setting up an experiment? A. Use a computer to record your data B. Control variables C. Videotape each step D. Use a balance scale

If you were going to build a scale model of the solar system, which part of your model would be the largest? A. Jupiter B. The moon C. The sun D. Earth

Using the graph on card 10, what could you conclude using the data in the graph? A. Next year it will be warmer in June than May. B. It is usually warmer in May than in July C. It was warmer in July 2000 than it was in July 2001. D. The summer months are the warmest months of the year.

Use the graph on card 7. Which island is home to the greatest number of species? How many species are there on this island?

What tool would be best to measure the melting point of an unknown substance? A. Graduated cylinder B. Computer C. Thermometer D. Balance

Carl runs on the track team. If Carl’s coach wants to see how fast he can run the 100 yard dash, what instrument does the coach need? A. A ruler and a magnifying glass B. A measuring tape and a stopwatch C. A magnifying glass and s stopwatch D. A measuring tape and a whistle

Which of these observations could be made without using a tool to measure? A. Plant A is taller than Plant B. B. Plant A was given 5 m. L of water each day. C. Plant B was given 3 g of food each week. D. Plant A and Plant B both grew more than 5 cm in a week.

Which of these has not been found on the surface of BOTH the Earth and the moon? A. Rocks B. Water C. Mountains D. Dust

Land forms are always changing. Deposition is one process that changes land forms. What kind of force is deposition? A. Constructive B. Chemical C. Destructive D. Electrical

What type of energy causes the evaporation of water from lakes, oceans, and rivers? A. Mechanical energy B. Electrical energy C. Solar energy D. Potential energy

What is true about stars? A. Stars reflect light from the sun. B. Stars are all the same size and color. C. The star closest to the Earth is the sun. D. Stars will survive forever.

Which of these is a renewable resource? A. Oil B. Coal C. Wood D. Natural gas

Objects have physical and chemical properties. When a physical change happens, only the physical properties of the object are changed. Which of these is a physical change? A. Cutting a sandwich in half B. Burning a piece of wood C. Cooking an egg D. Metal rusting

What change happens to liquid water when it is cooled to 0º C? A. It forms a solution. B. It starts to change from a liquid to a solid. C. It starts to change from a gas to a liquid. D. It forms a mixture.

A flashlight is a system with parts that work together. If all the parts of a flashlight work, what happens when you turn the flashlight on? A. Energy stored in the battery is changed to light energy by the light bulb. B. Energy stored in the on switch is changed to light energy by the light bulb. C. Energy stored in the light bulb is changed to electrical energy by the battery. D. Energy stored in the wires is changed to light energy by the battery.

How would the circuit need to be changed in order for the light bulb to produce light? A. A battery must be added. B. The switch must be closed. C. Wires must be added. D. A resistor must be added.

Where is the battery located in this electrical Circuit? A. A B. B C. C D. D

Which of the living things in this food chain is a producer? grass mouse snake hawk

Which stage is missing from the frog’s life cycle? A. Infant B. Nymph C. Tadpole D. Pupa egg ? adult

Some species of birds eat fish that they scoop from the water. Which of the following best describes the beaks of these bird species? A. Small and pointed B. Pouch-shaped C. Long and thin D. Jagged

What is one way in which plants depend on animals? A. Certain animals produce the oxygen plants need. B. Certain animals produce energy for plants. C. Certain animals help some plants spread their seeds. D. Certain animals produce the water plants need.

Within this food chain, which animal is both a predator and a prey? Explain your answer. algae zooplankton minnow trout

What is the length of one side of this square? cm 0 1 2 3 4 5

Which gas is used by plants to make food during the process of photosynthesis? A. Nitrogen B. Oxygen C. Carbon dioxide D. Sulfur

Why is it easier to push a heavy box across a smooth floor than it is to push the same box over a carpeted floor? A. There is more gravitational force on the carpet. B. The carpet has less kinetic energy than the floor. C. The floor has more momentum than the carpet. D. There is more friction when moving the box on the carpet than on the floor.

Which choice describes all the energy resources that were formed from the remains of plants and animals over millions of years? A. Oil B. Inexhaustible resources C. Solar energy D. Fossil fuels

Things that cannot be seen directly, such as wind, are observed by which of the following? A. Telescopes B. Indirect evidence C. Microscopes D. Binoculars

Using the triple – beam balance on card 20, what is the mass of the object on the pan? A. 375 g B. 300 g C. 70 g D. 5 g