Which of the following questions would not be logically asked in terms of an object’s physical properties?

How dense is the object at 30 degrees Celsius?

Is the object smooth or rough to the touch?

What color is the object in the sunlight?

Does the object either rust or corrode in salt water?

Which of the following is a true statement? A. The gravitational force on the surface of Mars changes a person’s mass. B. The weight of a person on Earth is less than if they were standing on Mars. C. The surface gravity on Earth is approximately 38% of the surface gravity on Mars. D. A person whose mass is 70 kg on Earth would have the same mass on Mars.

D. A person whose mass is 70 kg on Earth would have the same mass on Mars.

A. The gravitational force on the surface of Mars changes a person’s mass.

B. The weight of a person on Earth is less than if they were standing on Mars.

C. The surface gravity on Earth is approximately 38% of the surface gravity on Mars.

Which of the following is an eco-friendly way to remove oil from saltwater?

capture the floating oil with booms and skimmers

let the oil naturally sink to the bottom of the ocean

mix the oil and saltwater with large ships’ propellers

Given the data within the table above, which of the following best explains why these two locations have significant differences in the amount of daylight?

the orbit of the Moon around the Earth

the gravitational force of the Moon on the Earth

the rotation of Earth on its axis

A local community wishes to decrease their use of natural resources. Given how much aluminum cans are used by people in everyday life, which of the following approaches would be BEST for the environment?

Recycle the aluminum cans by collecting them, and then shipping them to a factory that will use the cans to make new cans.

Dispose of all aluminum cans into a large garbage pile, and then cover the pile up with dirt.

Melt the aluminum cans into liquid metal, and then pour the liquid metal back into the ground.

Replace all aluminum cans with plastic containers, and then discard the plastics into the local landfill.

In terms of how long it will take for sugar to dissolve in a beaker of water, which of the following is not a true statement?

The colder the water’s temperature, the faster the sugar will dissolve.

The sugar will dissolve quicker when the water molecules have more energy added.

As the water molecules lose energy, the rate of dissolution will decrease.

The rate of dissolution will increase when the amount of energy among the water molecules is increased.

How have humans impacted the ecosystem in this area?

They increased the number of predators.

They reduced the number of primary consumers.

They increased the number of prey.

They destroyed all of the decomposers.

Which of the following is the correct order of steps in photosynthesis?

The green plant takes carbon dioxide (CO2) from the air and water from the soil. Sunlight (solar energy) is trapped in the leaves by chlorophyll.

Stored solar energy changes carbon dioxide (CO2) and water (H2O) to glucose (sugar) and oxygen (O2).

The green plant releases oxygen (O2) back into the air as a byproduct.

The green plant uses glucose for food to grow and develop.

Given the current forces being applied to each of the four sides of the box, what would be the change in the box's direction if the force at the bottom of the box is replaced by a 8N force?

The box will move slightly faster (+3N) in the original direction.

The box will move slightly faster towards the right (about 3N).

The box will remain stationary (no movement).

The box will slow down by 3N from the original direction.

Given the following: Substance X = 100g, Substance Y = 25g. Given that no chemical reaction occurs, which mathematical model represents what happens to the mass of two substances that are mixed?

Substance X + Substance Y = 125g

Substance X - Substance Y = 75g

Substance X * Substance Y = 2,500g

A group of students plan to slide a brick down a 25-foot ramp constructed of wood. What could the students do to reduce the friction force between the brick and the ramp, thus increasing the speed of the brick sliding down the ramp?

change the length of the ramp to 30 feet

A group of girls are riding their bikes along a path that has a small hill. The girls pedal quickly to reach the top of the hill, and then take their feet off the pedals to “coast” the downhill part of the path. Which of the following best describes the motion of the girls’ bikes after they reached the bottom of the hill?

B. Their bikes will begin to slow down because of the friction between the wheels and the ground.

A. Their bikes will begin to speed up because gravity will no longer be pulling on the bikes.

C. Their bikes will begin to quickly speed up until the friction between the pedals and the ground causes them to stop.

D. Their bikes will increase their speed because the friction between the pedals and the chain increases.

Examine the image below. The beaker contains approximately 40 ml of water. If a solid object is placed into the beaker, what impact will it have on the water level?

B. The object’s volume will increase the water level.

A. The object’s weight will increase the water level if the weight is greater than 40 grams.

C. The object’s buoyancy will slightly decrease the water level.

D. The object’s shape, if round, could decrease the water level.

Why does the Sun appear brighter to humans on Earth than either the North Star or Sirius?

because the Sun is closer to Earth than either the North Star or Sirius making it appear brighter

because the Sun emits light to Earth making it appear brighter

because the Sun produces solar energy at higher levels than either the North Star or Sirius, which makes the Sun appear brighter

because the Sun uses a nuclear reaction known as "fusion", unlike either the North Star or Sirius

Fill in the blank: According to NASA, a type of air pollution known as "smog" is unhealthy for humans and animals to breathe. Smog is partially created from the burning of fossil fuels. Which of the following would be a reasonable approach to reduce the air pollution in large cities?

Require nearby factories to install special filters that clean the air of pollutants before being released into the atmosphere.

Require people and animals living in large cities to remain indoors most of the day.

Remove all cars and trucks from the cities, and ban any vehicle with an internal combustion engine from entering any large city.

Register all natural gas stoves used within city buildings and apartments, and add a "pollution" tax on all natural gas stove users within the city.

The bicycle pump is used to add air into bike tires. Which characteristic of air makes this tool an effective way to add air into bike tires?

D. Air atoms can be compressed.

A. Air atoms are too small to see.

B. Air particles move very slowly.

C. Air molecules begin to move once heated.

SCI5 Practice Test-Form F.v23 (copy) Quiz

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which historical figure provided evidence that Copernicus' astronomical model of our solar system was correct by using a telescope?

Newton

Plato

Galileo

Ptolemy

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A pool stick hits the purple pool ball with a force of 2N causing it to collide with only one of the white cue balls. Which of the following statements is true?

100% of the energy will remain with the purple pool ball.

The white cue ball that was not struck will receive 1N of force.

An energy transfer will occur between the purple pool ball and the white ball that was hit.

The white cue ball that was struck by the purple pool ball will receive 3N of new force.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the Sun the brightest star humans can see without using a telescope?

because it is the largest star

because it is the closest star

because it is made up of hot gases

because it produces light energy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who arrives at the bottom first and why?

Victoria arrives first because she has the least amount of mass, making friction affect her less.

Victoria arrives first because she has the least amount of mass, making gravity affect her more.

Juan arrives first because he has the greatest amount of mass, making friction affect him less.

Juan arrives first because he has the greatest amount of mass, making gravity affect him more.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jesse, who has more mass than Victoria but less than Thomas, joins the friends for a second trip down the slide. What is the order the friends will reach the bottom?

Juan, Thomas, Jesse, Victoria

Jesse, Victoria, Thomas, Juan

Victoria, Jesse, Thomas, Juan

Victoria, Juan, Jesse, Thomas

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the highest tide height recorded on the chart for 12/22?

10.36 feet

11.55 feet

6.6 feet

5.5 feet

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chart is reporting the large changes in the tides of Milbridge, Maine. Scientists now know that these changes in water depths (tides) observed on the coastline are due in part to the [CHOICE 1].

A) Moon's orbit around the Earth

B) Sun's influence on surface temperatures

C) Moon's rotation on its axis

D) Earth's axial tilt

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements, in terms of the ice block, is correct? A. Decreased air temperature will cause the molecules to slow down, changing the ice from a solid to plasma. B. Increased solar energy will cause the molecules to move faster, changing the ice from a solid to a liquid. C. Greater gravitational force will cause the molecules to increase so much that the ice block will change from a solid to a gas. D. Lower air pressure will cause the molecules to become more compacted, which begins the melting process.

A. Decreased air temperature will cause the molecules to slow down, changing the ice from a solid to plasma.

B. Increased solar energy will cause the molecules to move faster, changing the ice from a solid to a liquid.

C. Greater gravitational force will cause the molecules to increase so much that the ice block will change from a solid to a gas.

D. Lower air pressure will cause the molecules to become more compacted, which begins the melting process.

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mrs. Washington’s class collected information from a woodland biome. They organized the organisms they observed into the below table: Organism: Grass, Energy Source: Sun; Organism: Mouse, Energy Source: Grass, Grasshoppers, Dragonflies; Organism: Dragonfly, Energy Source: Ants; Organism: Snake, Energy Source: Mice, Frogs; Organism: Owl, Energy Source: Snakes, Frogs, Mice. Which of the following food chains show the correct energy flow? A. Owl -> Snake -> Mouse -> Grass B. Mouse -> Dragonfly -> Owl C. Grass -> Mouse -> Snake -> Owl D. Grass -> Snake -> Owl

A. Owl -> Snake -> Mouse -> Grass

B. Mouse -> Dragonfly -> Owl

C. Grass -> Mouse -> Snake -> Owl

D. Grass -> Snake -> Owl

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following would be the best example of a solution? A. A pet shop adding rocks and grass to the bottom of a fish tank. B. A hiker creating a trail mix made of nuts, dried berries, and M&Ms. C. A boy tossing a salad’s ingredients before adding the dressing. D. A person mixing blue and yellow paint to make green paint.

A pet shop adding rocks and grass to the bottom of a fish tank.

A hiker creating a trail mix made of nuts, dried berries, and M&Ms.

A boy tossing a salad’s ingredients before adding the dressing.

A person mixing blue and yellow paint to make green paint.

SCI5 Practice Test-Form F.v23 (copy)

42 questions

Which historical figure provided evidence that Copernicus' astronomical model of our solar system was correct by using a telescope?

A pool stick hits the purple pool ball with a force of 2N causing it to collide with only one of the white cue balls. Which of the following statements is true?

Why is the Sun the brightest star humans can see without using a telescope?

Who arrives at the bottom first and why?

Jesse, who has more mass than Victoria but less than Thomas, joins the friends for a second trip down the slide. What is the order the friends will reach the bottom?

What is the highest tide height recorded on the chart for 12/22?

The chart is reporting the large changes in the tides of Milbridge, Maine. Scientists now know that these changes in water depths (tides) observed on the coastline are due in part to the [CHOICE 1].

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