Which statement correctly describes the relationship between thermal energy and particle movement?(1 point)
Responses
As thermal energy increases, there is more particle movement.
As thermal energy increases, there is more particle movement.
As thermal energy increases, it is not possible to predict particle movement.
As thermal energy increases, it is not possible to predict particle movement.
As thermal energy increases, particle movement does not change.
As thermal energy increases, particle movement does not change.
As thermal energy increases, there is less particle movement.
As thermal energy increases, there is more particle movement.
Is that correct
Yes, that is correct. As thermal energy increases, the particles in a substance gain more kinetic energy and move more rapidly.
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 baking powder
the presence of baking powder
the presence of starch
the presence of starch
the presence of lipids or fat
the presence of lipids or fat
the presence of glucose
The presence of starch.
is that correct
Yes, that is correct. Iodine is commonly used as an indicator for the presence of starch. It turns blue-black in 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
Benedict’s test
Benedict’s test
iodine test
iodine test
vinegar test