Science Jeopardy Round #2 Vocabulary Matter & Energy Force & Motion Interactions w/ Living Organisms EcosystemsUniverse

#1 What term describes the tool used to place common organisms into proper kingdoms for identification?

#1 Answer: Classification Key

#2 What term describes the basic unit of life?

#2 Answer: Cell

#3 What word describes the process that ensures that individuals with certain traits are more likely to survive and have offspring of the same species ?

#3 Answer: Natural Selection

#4 What word describes the form of the sun’s energy that actually reaches the Earth?

#4 Answer: Light

#5 What word describes the result when minerals replace the soft parts of original organisms after thousands of years?

#5 Answer: A Fossil

What particle of an atom has a positive charge? #6

Answer: Proton

#7 What three things determine the physical state of matter?

#7 Answer: 1.Arrangement of molecules 2.Motion of molecules 3.Interaction of molecules

#8 Complete the sentence: Chemical changes occur at the _____ level to form new substances with different properties.

#8 Answer: atomic

#9 Static electricity is what kind of energy stored in a collection of separated negative and positive Charges?

#9 Answer: Potential Energy

#10 What is required to produce changes in matter and to do work?

#10 Answer: Energy

#11 Complete the following sentence: Simple machines can be used to change the force on an object, its _______, or its direction of movement.

#11 Answer: Speed

#12 The overall effect of many forces acting on an object at the same time is called what?

#12 Answer: Net Force

#13 What two things determine the change in motion of an object?

#13 Answer: Size and direction of net force

#14 Give two examples of simple machines and explain the mechanical advantage they provide.

#14 Answer:(Any 2) Lever: reduces the force needed to lift heavy objects Pulley: reduces the force needed over a larger distance Wedge: when placed between objects, splits, tightens or secures a hold Wheel & Axle: reduces friction Inclined plane: reduces the amount of effort required to move an object from a lower to a higher elevation Screw: grooved track on shaft reduces effort required to turn object

#15 Complete this sentence: The ___ the slope of an inclined plane, the easier it is to pull or push an object up an inclined plane.

#15 Answer: longer

#16 Green plants are important to animals because the plants ___? a.Consume food and give off oxygen b.Consume food and give off carbon dioxide c.Produce food and give off oxygen d.Produce food and give off carbon dioxide

#16 Answer: c. Produce food and give off oxygen

#17 What do the following items have in common? A fish, a dog, and a bird

#17 Answer: A backbone

#18 In the food chain, which are the most efficient users of solar energy?

#18 Answer: Herbivores

#19 When modern disease- controlling medicines and practices are introduced in developing countries, the first major change is ___?

#19 Answer: The death rate falls

#20 Why were these animals placed in these groups? Group A Group B Grasshopper Deer Robin Beaver Owl Opossum Moth Bat

#20 Answer: One group is active during the day (diurnal) and one group is active at night (nocturnal)

#21 Snakes feed on mice, mice feed on grain crops. When grain crops are plentiful, what will most likely happen?

#21 Answer: The mouse population will increase

#22 Complete the following sentence: A ____ is where each living organism in the ecosystem lives.

#22 Answer: Habitat

#23 Describe what the niche of a toad might be in a garden ecosystem.

#23 Answer: The toad’s niche would be to eat bugs that harm plants and create waste that makes the soil more fertile.

#24 The first step in a food chain is the producers (plants) who convert the sun’s energy into food for themselves. The next step is a primary consumer that eats the plants (organism) What do we call the organisms that are then eaten by other organisms?

#24 Answer: Secondary Consumers

#25 How would the following organisms be organized to show a food chain? Trout Algae Eagle Minnow

#25 Answer:

#26 Earth is the _____ planet from the sun.

#26 Answer: third

#27 What are the names of the four giant gas planets?

Answer: Jupiter, Saturn, Uranus, Neptune #27

#28 What celestial body has the strongest gravitational force in our solar system?

#28 Answer: The Sun

#29 What causes the phases of the Moon?

#29 Answer: The amount of the Moon that we can see changes over time in a cyclic period that repeats itself approximately once a month. The cause of these phases is the relative positions of the Sun, Earth, and Moon. No matter what phase the Moon is in, HALF of it is ALWAYS lit by the Sun. As the Moon moves in its orbit, different portions of it appear to be lit up as we look at it from Earth.

#30 What advantage does the Hubble Space Telescope have over all other telescopes?

#30 Answer: Although it is not the largest ever built, it has the advantage of working outside the Earth’s atmosphere so that images it receives are not blurred.