A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal about the substance?(1 point)
Responses
the presence of glucose
the presence of glucose
the presence of lipids or fat
the presence of lipids or fat
the presence of starch
the presence of starch
the presence of baking powder
the presence of starch
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)
Responses
brown paper bag test
brown paper bag test
vinegar test
vinegar test
Benedict’s test
Benedict’s test
iodine test
iodine test
Benedict's test
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)
Responses
Yes, it would hurt because the bricks would still have the same mass.
Yes, it would hurt because the bricks would still have the same mass.
No, it would not hurt because the bricks would have more weight.
No, it would not hurt because the bricks would have more weight.
Yes, it would hurt because the bricks would still have more weight.
Yes, it would hurt because the bricks would still have more weight.
No, it would not hurt because the bricks would have little mass.
No, it would not hurt because the bricks would have little mass.
Which measurement is affected by gravity?(1 point)
Responses
mass
mass
density
density
weight
weight
inertia
weight
What happens to the density of a material if you have a larger piece of it?(1 point)
Responses
The density will remain the same because mass and volume will remain the same.
The density will remain the same because mass and volume will remain the same.
The density will be smaller because the mass remains the same as the volume increases.
The density will be smaller because the mass remains the same as the volume increases.
The density will be greater because the mass increases but the volume remains the same.
The density will be greater because the mass increases but the volume remains the same.
The density will remain the same because mass and volume will both increase in the same way.
The density will remain the same because mass and volume will both increase in the same way.
The density will be smaller because the mass remains the same as the volume increases.
Which phases does water go through if you use distillation to separate it from dissolved sugar?(1 point)
Responses
from a liquid to a solid, and back to a liquid
from a liquid to a solid, and back to a liquid
from a liquid to a solid, and then to a gas
from a liquid to a solid, and then to a gas
from a liquid to a gas, and back to a liquid
from a liquid to a gas, and back to a liquid
from a solid to a liquid, and then to a gas
from a liquid to a gas, and back to a liquid
Which statement is a good description of plastic?(1 point)
Responses
It is a natural material made from natural resources.
It is a natural material made from natural resources.
It is a natural material that is made from synthetic resources.
It is a natural material that is made from synthetic resources.
It is a synthetic material that comes from natural resources.
It is a synthetic material that comes from natural resources.
It is a synthetic material that does not come from natural resources.
It is a synthetic material that comes from natural resources.
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)
Responses
There are not enough synthetic resources yet to make what people need.
There are not enough synthetic resources yet to make what people need.
The materials made in labs will still pollute the environment and destroy natural resources.
The materials made in labs will still pollute the environment and destroy natural resources.
People might think it is fine to waste a lot of the materials since they just came from a lab.
People might think it is fine to waste a lot of the materials since they just came from a lab.
Anything made in the lab requires natural resources to produce it.
Anything made in the lab requires natural resources to produce it.
What is the Great Pacific Garbage Patch?(1 point)
Responses
a place on the Pacific Coast where plastic waste from the ocean has collected on beaches
a place on the Pacific Coast where plastic waste from the ocean has collected on beaches
a place on the Pacific Coast with a large plastic recycling facility
a place on the Pacific Coast with a large plastic recycling facility
a place where people who live near the Pacific Ocean have collected plastic in one place
a place where people who live near the Pacific Ocean have collected plastic in one place
a place where plastic and other waste has collected in the Pacific Ocean