Blue
Scientific Explanations are based on...
A. Facts B. Instructions C. Models D. Opinions
A. Facts
Through which process do animals get energy from food?
A. digestion B. circulation C. evaporation D. reproduction
A. digestion
Which of the following rapidly changes Earth's surface? A. erosion B. deposition C. weathering D. landslides
D. landslides
Which tool is best used to study the parts of a flower? A. telescope B. binoculars C. flat mirror D. hand lens
D. hand lens
Which sense can best be used to describe the texture of an object? A. taste B. sight C. smell D. touch
D. touch
What is a procedure?
A. an observation that leads to a hypothesis B. an idea for an experiment C. a set of detailed records D. a set of step-by-step instructions
D. a set of step-by-step instructions
Which characteristic most helps animals that live in the desert
A. thick fur B. bright colors C. live birth D. large ears
D. large ears
Which action can form mountains?
A. land blocking streams B. land pushing against land C. water flooding a field D. water rising above
B. land pushing against land
Which system is human-made?
A. ocean system B. nervous system C. weather system D. computer system
D. computer system
Which statement describes the movement of objects in the Sun-Earth-Moon system? A. Earth travels around the Moon and the Sun. B. The Sun travels around Earth and the Moon. C. Earth travels around the Sun, and the Moon travels around Earth. D. The Sun travels around Earth, and the Moon travels around Earth.
C. Earth travels around the Sun, and the Moon travels around Earth.
Which best describes the inquiry process?
A. Making a list of questions B. Explaining answers to questions C. Asking questions and searching for answers D. Doing activities
C. Asking questions and searching for answers
Which is not a characteristic that has been passed from parent to offspring?
A. the pattern on a monarch butterfly's wings B. the shape of an eagle's beak C. the trick a dog has learned D. the length of a giraffe's neck
C. the trick a dog has learned
What keeps Earth in orbit around the Sun
A. the Earth's rotation on its axis B. the sun's rotation on its axis C. the gravity between Earth and the sun D. the gravity between the Earth and the moon
C. the gravity between Earth and the sun
Which part of the ecosystem is alive and provides oxygen for animals and humans?
A. soil B. plant C. water D. mushroom
B. plant
Which feature of a grasshopper has the same purpose as the rib cage of a person?
A compound eye B hard outer covering (exoskeleton)
C double wings D jointed hind legs
B hard outer covering
Which tools could you use to observe the details of a plant leaf?
A. a hand lens and a telescope B. a telescope and a computer C. a hand lens and a microscope D. a telescope and a thermometer
C. a hand lens and a microscope
Which forms of energy are produced by the sun
A. light and heat B. light and chemical C. electrical and heat D. electrical and chemical
A. light and heat
Why are shadows longer in the morning than at noon? A. The sun is lower in the sky in the morning B. The sun is higher in the sky in the morning C. The sun is cooler in the morning D. The sky is cloudier in the morning
A. The sun is lower in the sky in the morning
A sea is larger than a pond. Which of these is smaller than a sea but larger than a pond?
A. puddle B. ocean C. pool D. lake
D. lake
How might an increase in water pollution change part of an environment?
A Skies are clearer. B Streets are cleaner. C Lakes grow more algae. D Animals grow more quickly.
C Lakes grow more algae.
You've been asked to give a report on the planet Jupiter. What would best allow you to compare the sizes of Earth and Jupiter?
A. a graph B. a sketch C. a three-dimensional model D. a written description
C. a three-dimensional model
Lizards sit on rocks to warm their bodies. Where does heat to warm a lizard come from?
A. The rock conducts heat into air around the lizard. B. The rock absorbs heat from the lizard. C. Air conducts heat into the rock. D. Air absorbs heat from the lizard.
A. The rock conducts heat into air around the lizard.
What would you expect to happen if the Earth did not tilt on its axis?
A. There would be darkness all the time B. There would be shorter daylight hours in the winter C. There would be similar hours of daylight and darkness all year D. There would be longer hours of daylight in the summer.
C. There would be similar hours of daylight and darkness all year
Which of these is an example of chemical weathering?
A. Acid rain reacts with rocks, creating a new substance that breaks apart the rocks. B. Water repeatedly freezes and thaws in the cracks of a rock splitting the rock into pieces. C. A glacier grinds rock into pieces. D. A tree's roots grow in the cracks of a rock breaking it apart.
A. Acid rain reacts with rocks, creating a new substance that slowly breaks apart the rocks.
A song is playing on a radio. Which statement describes the change in the flow of energy?
A Electrical energy is changed to light energy. B Electrical energy is changed to sound energy. C Sound energy is changed to light energy. D Sound energy is changed to electrical energy.
B Electrical energy is changed to sound energy.