1. Which statement correctly describes the relationship between thermal energy and particle movement?(1 point)%0D%0AResponses%0D%0A%0D%0AAs thermal energy increases, particle movement does not change.%0D%0AAs thermal energy increases, particle movement does not change.%0D%0A%0D%0AAs thermal energy increases, there is less particle movement.%0D%0AAs thermal energy increases, there is less particle movement.%0D%0A%0D%0AAs thermal energy increases, there is more particle movement.%0D%0AAs thermal energy increases, there is more particle movement.%0D%0A%0D%0AAs thermal energy increases, it is not possible to predict particle movement.

Question

2. A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal about the substance?(1 point)%0D%0AResponses%0D%0A%0D%0Athe presence of starch%0D%0Athe presence of starch%0D%0A%0D%0Athe presence of lipids or fat%0D%0Athe presence of lipids or fat%0D%0A%0D%0Athe presence of glucose%0D%0Athe presence of glucose%0D%0A%0D%0Athe presence of baking powder

3. A student wants to try to convince her parents to stop serving peas for dinner. She lays out her argument that peas are high in fructose, which is a type of sugar. Which test could she use to provide scientific evidence to support her argument that peas are high in fructose?(1 point)%0D%0AResponses%0D%0A%0D%0Aiodine test%0D%0Aiodine test%0D%0A%0D%0Avinegar test%0D%0Avinegar test%0D%0A%0D%0Abrown paper bag test%0D%0Abrown paper bag test%0D%0A%0D%0ABenedict’s test%0D%0ABenedict’s test

4. The expression like a ton of bricks means “a crushing weight.” Would being hit by an actual ton of bricks hurt if it happened on the moon?(1 point)%0D%0AResponses%0D%0A%0D%0AYes, it would hurt because the bricks would still have more weight.%0D%0AYes, it would hurt because the bricks would still have more weight.%0D%0A%0D%0ANo, it would not hurt because the bricks would have little mass.%0D%0ANo, it would not hurt because the bricks would have little mass.%0D%0A%0D%0ANo, it would not hurt because the bricks would have more weight.%0D%0ANo, it would not hurt because the bricks would have more weight.%0D%0A%0D%0AYes, it would hurt because the bricks would still have the same mass.

5. Which measurement is affected by gravity?(1 point)%0D%0AResponses%0D%0A%0D%0Aweight%0D%0Aweight%0D%0A%0D%0Amass%0D%0Amass%0D%0A%0D%0Adensity%0D%0Adensity%0D%0A%0D%0Ainertia

6. What happens to the density of a material if you have a larger piece of it?(1 point)%0D%0AResponses%0D%0A%0D%0AThe density will be smaller because the mass remains the same as the volume increases.%0D%0AThe density will be smaller because the mass remains the same as the volume increases.%0D%0A%0D%0AThe density will be greater because the mass increases but the volume remains the same.%0D%0AThe density will be greater because the mass increases but the volume remains the same.%0D%0A%0D%0AThe density will remain the same because mass and volume will both increase in the same way.%0D%0AThe density will remain the same because mass and volume will both increase in the same way.%0D%0A%0D%0AThe density will remain the same because mass and volume will remain the same.

7. A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt?(1 point)%0D%0AResponses%0D%0A%0D%0Adistillation to collect both the sand and the salt%0D%0Adistillation to collect both the sand and the salt%0D%0A%0D%0Afiltration to collect the sand and distillation to collect the salt%0D%0Afiltration to collect the sand and distillation to collect the salt%0D%0A%0D%0Afiltration to collect both the sand and the salt%0D%0Afiltration to collect both the sand and the salt%0D%0A%0D%0Adistillation to collect the sand and filtration to collect the salt

8. Which phases does water go through if you use distillation to separate it from dissolved sugar?(1 point)%0D%0AResponses%0D%0A%0D%0Afrom a solid to a liquid, and then to a gas%0D%0Afrom a solid to a liquid, and then to a gas%0D%0A%0D%0Afrom a liquid to a gas, and back to a liquid%0D%0Afrom a liquid to a gas, and back to a liquid%0D%0A%0D%0Afrom a liquid to a solid, and back to a liquid %0D%0Afrom a liquid to a solid, and back to a liquid %0D%0A%0D%0Afrom a liquid to a solid, and then to a gas

9. Which statement is a good description of plastic?(1 point)%0D%0AResponses%0D%0A%0D%0AIt is a synthetic material that does not come from natural resources.%0D%0AIt is a synthetic material that does not come from natural resources.%0D%0A%0D%0AIt is a natural material that is made from synthetic resources.%0D%0AIt is a natural material that is made from synthetic resources.%0D%0A%0D%0AIt is a natural material made from natural resources.%0D%0AIt is a natural material made from natural resources.%0D%0A%0D%0AIt is a synthetic material that comes from natural resources.

10. A student states that natural resources could be saved if people made everything they need in labs. What is the main problem with this idea?(1 point)%0D%0AResponses%0D%0A%0D%0AAnything made in the lab requires natural resources to produce it.%0D%0AAnything made in the lab requires natural resources to produce it.%0D%0A%0D%0AThere are not enough synthetic resources yet to make what people need.%0D%0AThere are not enough synthetic resources yet to make what people need.%0D%0A%0D%0APeople might think it is fine to waste a lot of the materials since they just came from a lab.%0D%0APeople might think it is fine to waste a lot of the materials since they just came from a lab.%0D%0A%0D%0AThe materials made in labs will still pollute the environment and destroy natural resources.

11. Which discovery would have the greatest impact on reducing the negative consequences of plastic?(1 point)%0D%0AResponses%0D%0A%0D%0Athe discovery of more ways to reuse plastic%0D%0Athe discovery of more ways to reuse plastic%0D%0A%0D%0Athe discovery of new sources for the raw materials of plastic%0D%0Athe discovery of new sources for the raw materials of plastic%0D%0A%0D%0Athe discovery of a new bacteria that consumes plastic waste%0D%0Athe discovery of a new bacteria that consumes plastic waste%0D%0A%0D%0Athe discovery of more ways to incorporate plastic in everyday goods

12. What is the Great Pacific Garbage Patch?(1 point)%0D%0AResponses%0D%0A%0D%0Aa place where people who live near the Pacific Ocean have collected plastic in one place%0D%0Aa place where people who live near the Pacific Ocean have collected plastic in one place%0D%0A%0D%0Aa place on the Pacific Coast with a large plastic recycling facility%0D%0Aa place on the Pacific Coast with a large plastic recycling facility%0D%0A%0D%0Aa place where plastic and other waste has collected in the Pacific Ocean%0D%0Aa place where plastic and other waste has collected in the Pacific Ocean%0D%0A%0D%0Aa place on the Pacific Coast where plastic waste from the ocean has collected on beaches

Answer 1

Here are the answers to your questions based on scientific principles:

1. Which statement correctly describes the relationship between thermal energy and particle movement?

   • As thermal energy increases, there is more particle movement.

2. A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal about the substance?

   • the presence of starch.

3. A student wants to try to convince her parents to stop serving peas for dinner. She lays out her argument that peas are high in fructose, which is a type of sugar. Which test could she use to provide scientific evidence to support her argument that peas are high in fructose?

   • Benedict’s test.

4. The expression like a ton of bricks means “a crushing weight.” Would being hit by an actual ton of bricks hurt if it happened on the moon?

   • Yes, it would hurt because the bricks would still have the same mass. (Weight is affected by gravity, but mass remains the same regardless of the location.)

5. Which measurement is affected by gravity?

   • weight.

6. What happens to the density of a material if you have a larger piece of it?

   • The density will remain the same because mass and volume will both increase in the same way.

7. A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt?

   • filtration to collect the sand and distillation to collect the salt.

8. Which phases does water go through if you use distillation to separate it from dissolved sugar?

   • from a liquid to a gas, and back to a liquid.

9. Which statement is a good description of plastic?

   • It is a synthetic material that comes from natural resources.

10. A student states that natural resources could be saved if people made everything they need in labs. What is the main problem with this idea?

    • Anything made in the lab requires natural resources to produce it.

11. Which discovery would have the greatest impact on reducing the negative consequences of plastic?

    • the discovery of a new bacteria that consumes plastic waste.

12. What is the Great Pacific Garbage Patch?

    • a place where plastic and other waste has collected in the Pacific Ocean.

Feel free to ask if you have any more questions!