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- 1. Multiple ChoiceWhich of these best demonstrates the reflection of light?Looking through a glass windowLooking at a glowing lightbulbLooking at a star on a clear nightLooking at your image on a silver spoon
- 2. Multiple Choice
Which of these cycles is a direct result of Earth's rotation?Day and NightMoon phasesRainfall and evaporationSeasons - 3. Multiple ChoiceMoving water flows through turbines in dams causing the turbines to spin. What type of energy is used to make the turbines spin?Light energyThermal energyMechanical energySound energy
- 4. Multiple ChoiceThe food web represents organisms in a field. What role do raccoons play in this food web?PreyProducersConsumerDecomposer
- 5. Multiple ChoiceAt which stage in the life cycle of a plant are seeds produced?Young plantSprouting seedSeedlingMature plant
- 6. Multiple ChoiceWhich of the following events in the water cycle is an example of solar energy being absorbed?Water vapor condensing into cloudsWater evaporating from ocean surfaceRain freezing as it falls toward the groundClouds releasing precipitation
- 7. Multiple ChoiceThe diagram shows a series circuit with three lit bulbs. How many bulbs will remain lit if the wire is cut at the point shown by the arrow?0123
- 8. Multiple Choice
This house uses what type of energy?
Solar energy
Mechanical energy
Sound energy
Electrical energy
- 9. Multiple ChoiceWhich two traits best help a cactus conserve water in the dry conditions of a West Texas desert ecosystem?Large flowers and sweet fruitSweet fruit and sharp spinesSharp spines and waxy stemsWaxy stems and large flowers
- 10. Multiple ChoiceWhen light travels through air into a prism,it bends and separates into many colors. In which other situation does light bend.When light moves through air into waterWhen light hits a wallWhen light passes through outer spaceWhen light hits a mirror
- 11. Multiple ChoiceSome facts about a bird called the painted redstart are shown. Which fact best describes one way the bird changes its environment to meet its needs?Fact 1Fact 2Fact 3Fact 4
- 12. Multiple ChoiceThe diets of several prairie animals are shown in the table. Which of the following prairie food chains is in the correct order?Eagles prairie dogs coyotesWildflowers badgers grasshoppersSparrows seeds insectsGrasses prairie dogs badgers
- 13. Multiple ChoiceIn the fall and winter many trees lose their leaves in response to cooler temperatures and --a decrease in average wind speedfewer hours of daylightan increase in humiditymore direct sunlight
- 14. Multiple ChoiceScientists use telescopes to make distant object appear closer. Some parts of the telescope are shown here. Which of the following best describes what is happening?The objective lens produces lightThe objective lens blocks lightThe objective lens reflects lightThe objective lens refracts light
- 15. Multiple ChoiceA student reads the label on the bottle of salad dressing. Why would the student shake the salad dressing before using it?Vinegar and oil have different densitiesVinegar and oil easily form a solutionVinegar and oil both contain waterVinegar and oil are both liquids
- 16. Multiple ChoiceWhich of these best describes climate rather than weather?Wind speed is changing as a storm moves throughThe temperature is decreasing due to a cold frontAnnual high temperatures in the summer have increased over decadesIt is a cold cloudy day outside
- 17. Multiple ChoiceCrayfish live in water and often hide under rocks until they come out to eat. Which of the following is a trait they inherited from its parents?The average distance it travels a dayThe number of legs it hasThe amount of food it eats each dayThe types of plants in its habitat
- 18. Multiple ChoiceMany types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe?Plants use oxygen from the air to make food.Plants release pollution into the airPlants release energy from the sun into the airPlants take in carbon dioxide and release oxygen
- 19. Multiple ChoiceA string of lights with small bulbs is shown. The bulbs are connected by wire covered with an insulator. When the lights are on, electricity travels in --a complete circuita sound wavea light rayan incomplete path
- 20. Multiple ChoiceEagles catch fish in rivers with their talons then tears the fish into small pieces to eat it. Which bird most likely catches and eats its food the same way?FGHJ
- 21. Multiple ChoiceThere are many sources of heat in our homes. Which common household item does not directly cause heat energy?a 60 watt light bulba microwave ovenan electric stovecoiled wires inside a toaster
- 22. Multiple ChoiceWater is added to a mixture of Kool-Aid powder and sugar in a glass. Add water causes the physical properties of the Kool-Aid powder to --change, while the physical properties of the sugar remain the sameremain the same, while the physical properties of the sugar changeremain the same, just like the physical properties of the sugarchange, and the physical properties of the sugar to change
- 23. Multiple ChoiceLook at the diagram of our solar system. What is Earth's position from the sun?firstthirdfifthseventh
- 24. Multiple ChoiceWhich of these is an example of a learned behavior that an animal uses to protect itself from predators?An armadillo has a hard shell that coyotes cannot bite intoA moth looks like a tree bark, so a robin cannot see itA frog contains strong chemicals that taste bad to predatorsA prairie dog runs underground when a hawk's shadow appears overhead
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