Pure Substances and Mixtures Content Quiz_23.24

Last updated over 1 year ago

9 questions

Pure Substances and Mixtures Content Quiz_23.24

Last updated over 1 year ago

9 questions

Question 1

How are homogeneous mixtures and heterogeneous mixtures similar?

They both have different properties throughout the mixture.

They both are made of two or more substances that can be separated physically.

They both are made of only one substance.

Question 2

How are pure substances and mixtures different?

Pure substances are very big, but mixtures are very small.

Pure substances are always made of the same elements, but mixtures are two or more substances that can be separated physically.

Pure substances are made of three different substances with different parts that you can see, but mixtures are only made of one substance.

This graph shows the effect of temperature on the time it takes salt to dissolve in water.

Question 3

Question 5

Salt water is a homogenous mixture. Can it be separated physically?

Yes.

No.

We don't know.

Question 6

Gold is an element. What is true about gold?

It can be separated physically.

It is made of two or more substances combined together.

It is made of one kind of atom and cannot be divided.

This is calcium carbonate.

Question 8

How do you know what calcium carbonate is?

This is kachumbari.  People eat it in East Africa.

Question 9

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?
Kachumbari is a _ because _____________.

Question 1

How are homogeneous mixtures and heterogeneous mixtures similar?

They both have different properties throughout the mixture.

They both are made of two or more substances that can be separated physically.

They both are made of only one substance.

Question 2

How are pure substances and mixtures different?

Pure substances are very big, but mixtures are very small.

Pure substances are always made of the same elements, but mixtures are two or more substances that can be separated physically.

Pure substances are made of three different substances with different parts that you can see, but mixtures are only made of one substance.

This graph shows the effect of temperature on the time it takes salt to dissolve in water.

Question 3

How many minutes did it take for the salt to dissolve in cold water?

6

3

2

1

Question 4

In what temperature of water does salt dissolve the fastest?

Icy

Hot

Question 5

Salt water is a homogenous mixture. Can it be separated physically?

Yes.

No.

We don't know.

Question 6

Gold is an element. What is true about gold?

It can be separated physically.

It is made of two or more substances combined together.

It is made of one kind of atom and cannot be divided.

This is calcium carbonate.

Question 7

What is calcium carbonate?

Element

Compound

Homogeneous mixture (solution)

Heterogeneous mixture

Question 8

How do you know what calcium carbonate is?

Because it does not have the same properties throughout.

Because it can be separated physically.

Because it is made of two or more elements that cannot be separated physically.

This is kachumbari.  People eat it in East Africa.

Question 9

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?
Kachumbari is a _ because _____________.

How many minutes did it take for the salt to dissolve in cold water?

6

3

2

1

Question 4

In what temperature of water does salt dissolve the fastest?

Icy

Hot

Question 7

What is calcium carbonate?

Element

Compound

Homogeneous mixture (solution)

Heterogeneous mixture

Because it does not have the same properties throughout.

Because it can be separated physically.

Because it is made of two or more elements that cannot be separated physically.

Pure Substances and Mixtures Content Quiz_23.24

Pure Substances and Mixtures Content Quiz_23.24

How are homogeneous mixtures and heterogeneous mixtures similar?

How are pure substances and mixtures different?

Salt water is a homogenous mixture. Can it be separated physically?

Gold is an element. What is true about gold?

How do you know what calcium carbonate is?

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?Kachumbari is a _____________________ because _________________________________.

How are homogeneous mixtures and heterogeneous mixtures similar?

How are pure substances and mixtures different?

How many minutes did it take for the salt to dissolve in cold water?

In what temperature of water does salt dissolve the fastest?

Salt water is a homogenous mixture. Can it be separated physically?

Gold is an element. What is true about gold?

What is calcium carbonate?

How do you know what calcium carbonate is?

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?Kachumbari is a _____________________ because _________________________________.

In what temperature of water does salt dissolve the fastest?

What is calcium carbonate?

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?
Kachumbari is a _ because _____________.

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?
Kachumbari is a _ because _____________.