My Science Report Handbook

Melting Chocolate

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My Science Report

1. Title

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2. Hypothesis

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3. Method (and Equipment List)

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4. Results

Draw a picture of the experiment before you begin, and after you finish.

Before After

5. Discussion

Remember to use the GLOSSARY to help you explain.

Scientist Secret:

Write the most scientific answer you can

by using as many words and definitions

from the GLOSSARY as possible.

Discussion Part 1: Chocolate And States Of Matter

1. What state of matter was the chocolate before the experiment started?

Describe this state of matter.

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2. What state of matter did the chocolate turn into? Describe this state of

matter.

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3. What was happening to the movement of the chocolate molecules?

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4. What caused the chocolate molecule to move this way?

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5. What is this process that caused this movement called? Describe this

process.

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Discussion Part 2: Water And States Of Matter

1. In what state of matter was the water before we boiled it? Describe this

state of matter.

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2. What state of matter did the water start changing into so that it could

touch the bottom of bowl with the chocolate in it? Describe this state of

matter

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3. What is this process called? Describe this process.

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Discussion Part 3 – Heat Production and Heat Transfer

4. How did the heat transfer from the stove to the pot with the water in it? Name and describe this process. ____________________________________________________________________________________________________________

5. How did the heat transfer from the pot to the water inside of it? Name

and describe this process.

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6. How did the heat transfer from the bowl with the chocolate in it, to the

chocolate in it? Name this process.

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7. *Was the heat from the stove made through Friction, Electricity or

Burning?

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Conclusion

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*What is your Special Question?

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Key Facts About States Of Matter:

Fill in the blanks with the words in the box so that the statement makes sense.

molecules matter away state heat fast matter movement

The ____________ of ____________ depends on how ____________

molecules move.

Adding ____________ or taking it ____________ can change matter from

one state to another.

When ____________ changes state, it is really the ____________ of

____________ speeding up or slowing down.

GLOSSARY

Heat: It is made by friction, electricity and burning.

Conduction: when heat is transferred directly from one object to another

Radiation: when heat is transferred as heat waves through emptiness

Convection: when heat is transferred in a circle

Heat Transfer: When heat moves from a hot object to a cold object

Molecules: the building blocks of everything in the world

Matter: It is what makes everything in the world, and it is made of molecules. Matter has

different states which are called solid, liquid and gas. Matter changes into these states through

heating or cooling, and definitely through boiling or freezing. These two are extremes of heating

and cooling.

Solid: when something is hard and firm, like wood. Molecules don’t move at all here.

Liquid: It is something that flows that you can pour, like juice. Molecules move slowly here.

Gas: It is something that will spread to fill any space, like air. Molecules move the fastest here.

Condensation: the process of gas turning into liquid

Evaporation: the process of liquid changing into gas

Melting: when a solid turns into a liquid

Freezing: when a liquid turns into a solid

Temperature: how hot or cold something is

Thermometer: the tool we use to measure temperature

PUZZLE TIME

Melting Chocolate – States of Matter and Heat

N G N S N T B D N T H T M E O

G O N O O L S O T S O F V L R

N Y I I I L I Q Q J G R E E S

I L P T T T I R H A L E T C E

N W G K A L C D S S N E G T L

R B E I R S E E C V M Z D R U

U N D R O I N M V O C I D I C

B A P L P G H E M N U N L C E

R I U I A S O R D Q O G C I L

T K S K V Y E C I N E C Q T O

R Y X Z E H H L L Q O I H Y M

X N O I T C U D N O C C E T F

T E M P E R A T U R E C A A C

I M T N E M E V O M A T T E R

F R I C T I O N D M H L V Q G

BURNING CONDENSATION

CONDUCTION CONVECTION

ELECTRICITY EVAPORATION

FREEZING FRICTION

GAS HEAT

LIQUID MATTER

MELTING MOLECULES

MOVEMENT RADIATION

SOLID TEMPERATURE

THERMOMETER