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Science #1
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Science #5
100
Students were investigating some properties of rocks. They wanted to compare the volumes of the rocks. Which tool should the students use to accurately measure the volume of each rock? (A) graduated cylinder (B) light microscope (C) balance (D) ruler
What is (A) graduated cylinder?
100
(BONUS: 10x) Which statement BEST explains the difference between longitudinal and transverse waves? (A) Longitudinal waves have troughs, while transverse waves have crests. (B) Longitudinal waves produce energy, while transverse waves consumes energy. (C) Particles in longitudinal waves travel towards a force, while particles in transverse waves travel away from a force. (D) Particles in longitudinal waves travel in the direction of the wave, while particles in transverse waves travel perpendicular to the wave.
What is (D) Particles in longitudinal waves travel in the direction of the wave, while particles in transverse waves travel perpendicular to the wave.?
100
In which cell structures are water, salts and proteins stored? (A) ribosomes (B) vacuoles (C) endoplasmic reticulum (D) chloroplasts
What is (B) vacuoles?
100
Which of Earth's layers contains both solid rock and rock that is partly melted? (A) crust (B) mantle (C) inner core (D) outer core
What is (B) mantle?
100
Which of these is a characteristics of sexual reproduction? (A) formation of eggs and sperm (B) formation of runners (C) growth of a new organism from a bud (D) production of offspring that are exactly like a parent
What is (A) formation of eggs and sperm?
200
Which of the following is a simple machine? (A) a hand-held can opener (B) a pair of scissors (C) a light bulb (D) a pencil sharpener
What is (C) a light bulb?
200
Which statement best explains why a book with large print is classified as an assistive technology? (A) The technology to produce books with large print already exists. (B) Large-print books help people who have poor vision read more clearly. (C) Large-print books are less expensive to produce than standard-print books. (D) More people enjoy books with large print than books with standard print.
What is (B) Large-print books help people who have poor vision read more clearly.?
200
A student needs to move a heavy object across 50 meters of level ground. Which simple machine will most help the student move the object? (A) lever (B) screw (C) inclined plane (D) wheel and axle
What is (D) wheel and axle?
200
(BONUS: 10x) What is a function of the endoplasmic reticulum? (A) transporting materials (B) manufacturing ribosomes (C) producing energy for the cell (D) controlling cell activities
What is (B) manufacturing ribosomes?
200
Which of these BEST describes the composition of the inner core of Earth? (A) liquid water and rock crystals (B) oxygen and carbon dioxide gas (C) liquid iron and nickel (D) solid nickel and iron
What is (D) solid nickel and iron?
300
(BONUS: 5x) A volcano is LEAST LIKELY to form (A) in the middle of an ocean. (B) at a boundary where plates move apart. (C) in the middle of lithospheric plate. (D) at a boundary where plates collide.
What is (D) at a boundary where plates collide.?
300
Which best describes the function of a ribosome? (A) storing waste products (B) manufacturing proteins (C) digesting food particles (D) providing support
What is (B) manufacturing proteins?
300
Which organ system is correctly matched with its main function? (A) The excretory system defends the body from disease-causing organisms. (B) The nervous system controls body responses to the environment. (C) The skeletal system distributes energy throughout the body. (D) The digestive system removes waste products from the body.
What is (D) The digestive system removes waste products from the body.?
300
During photosynthesis, carbon dioxide and water react in the presence of sunlight to produce (A) oxygen and carbon, (B) glucose and carbon monoxide (C) glucose and oxygen, (D) hydrogen and oxygen
What is (C) glucose and oxygen?
300
What parts of a flower are MOST LIKELY to attract pollinators? (A) sepals (B) petals (C) anthers (D) pistils
What is (B) petals?
400
Which two organ systems are MOST responsible for movement? (A) skeletal and integumentary (B) integumentary and muscular (C) muscular and skeletal (D) immune and integumentary
What is (C) muscular and skeletal?
400
There was a cross between a plant with green pods (Gg) and a plant with yellow pods (gg). Yellow pods are recessive (g) in the presence of green pods (G). Which parts of the Punnett square would contain a genotype that results in green pods? (A) parts 1 and 2 (B) parts 1 and 3 (C) parts 2 and 3 (D) parts 2 and 4
What is (B) parts 1 and 3?
400
(BONUS: 8x) Scientists think that the distance between the coasts of the continents of South America and Africa is increasing. The tectonic plates on which these continents sit are MOST LIKELY moving away from each other at an average rate of (A) about 50km per year. (B) about 5km per year. (C) about 5m per year. (D) about 5cm per year.
What is (D) about 5cm per year.?
400
(BONUS: 5x) In humans, having attached (A) is dominant to having free earlobes (a). In which cross will 25% of offspring most likely have free earlobes? (A) Aa x Aa (B) AA x AA (C) aa x aa (D) AA x aa
What is (A) Aa x Aa?
400
Which two organ systems work together to get nutrients to body cells? (A) circulatory and digestive (B) circulatory and respiratory (C) digestive and immune (D) excretory and digestive
What is (B) circulatory and respiratory?
500
People have built dams on some of TN's rivers to generate hydroelectric power.This is a clean form of energy. Which is MOST LIKELY an unintended consequence of this technology? (A) It changes the environment for organisms that live in or near the river. (B) It increases air pollution. (C) It conserves fossil fuels. (D) It decreases air pollution.
What is (A) It changes the environment for organisms that live in or near the river.?
500
A cross between a tall pea plant (TT) and a short pea plant (tt) was shown in a Punnett square. Which statement about the offspring of this cross is MOST LIKELY true? (A) All the offspring will have the same phenotype and genotype. (B) All the offspring will have the same genotype, and half will have the same genotype. (C) Three-quarters of the offspring will be tall, and one-quarter will be short. (D) All the offspring will grow to medium heights.
What is (A) All the offspring will have the same phenotype and genotype.?
500
Engineers are working to develop new streetlights that can be powered using energy from the sun. The lights will cost more to purchase than existing lights, but should cost less to operate over time. What is the most likely intended benefit of this technology? (A.) better lighting (B.) longer-lasting bulbs (C.) an increase in fossil fuel use (D.) lower electrical costs for communities
What is (D.) lower electrical costs for communities?
500
Which of these BEST demonstrates Newton's 3rd Law of motion? (A) A paddle boat moves because of the force the water exerts on the paddles. (B) Gravity pulls an object toward Earth. (C) Wind moves a piece of paper, but not a large rock, in the direction of a force. (D) A net force causes an object at rest to change direction.
What is (A) A paddle boat moves because of the force the water exerts on the paddles.?
500
(BONUS: 5x) Which process BEST describes how a sedimentary rock might change into a metamorphic rock? (A) Rocks breaks down into sediments that are compacted and cemented together. (B) Rock at Earth's surface is driven underground, where it is changed heat and pressure. (C) Rock breaks down into sediments that melt before cooling and hardening. (D) Rock at Earth's surface is driven underground, where it melts.
What is (B) Rock at Earth's surface is driven underground, where it is changed heat and pressure.?