EXPERIMENT FOR SCIENCE FORM 1 SCIENCE

2. • THIS EXPERIMENT IS TO SHOW THAT THE SUN
GIVES OUT HEAT.
• THE PAPER CATCHES FIRE.
• THE CONCLUSION IS SUN GIVES OUT HEAT

3. • THIS EXPERIMENT IS TO SHOW THAT HEAT
CAN BE PRODUCED WHEN THERE IS
FRICTION BETWEEN TO OBJECTS.
• BOTH THE STICK AND THE ROCK
PRODUCES HEAT AS THERE WERE FRICTION
BETWEEN THEM.
RUBBING TWO
STICKS
STRIKING TWO
STONES

4. • THIS EXPERIMENT IS TO SHOW THAT HEAT CAUSES SOLID
TO EXPAND AND CONTRACTS.
• THE METAL RING EXPANDS WHEN HEATED AND
CONTRACTS WHEN COOLED.
• THE METAL RING CAN’T PASS THROUGH THE RING
WHEN HEATED AND CAN PASS THROUGH IT AGAIN
WHEN IT IS COOLED.
• THE CONCLUSION IS SOLIDS EXPANDS AND
CONTRACTS WHEN HEATED AND COOLED

5. • AFTER FEW MINUTES,THE LIQUID/INDICATOR GOES DOWN BACK AS
IT LOOSES HEAT.
• THE CONCLUSION OF THIS EXPERIMENT IS AIR EXPANDS WHEN IS
CONTACT WITH HEAT AND CONTRACTS WHEN LOOSES HEAT.

6. • THIS EXPERIMENT IS TO SHOW THAT HEAT FLOWS BY CONDUCTION.
• THUMBTACK ______ WILL FALL FIRST BECAUSE HEAT FLOWS FROM
THE HOT END OF THE IRON ROD TO THE COLD END.

7. THE PICTURE ABOVE SHOWS
HOW HEAT FLOWS BY
CONVECTION IN A LIQUID

8. THE IMAGE ABOVE
SHOWS HOW A
VACUMM LOOKS
LIKE….
HEAT TRAVELS
THOUGH VACUM AS
RADIATION OR HEAT
RAYS
RADIATION =
VACUUM

9. 0
2
4
6
8
10
12
14
PAPER COTTON ALUMINIUM FOIL SHEEP WOOL
RATE OF HEAT INSULATORS
. , .2

11. • DARK, DULL OBJECTS ABSORB HEAT BETTER THAN WHITE, SHINY
OBJECTS.
• DARK, DULL OBJECTS GIVE OUT HEAT BETTER THAN WHITE, SHINY
OBJECTS.

12. 1)WHAT IS THE CHANGES IN STATE OF MATTER
OCCURS DURING THE MELTING
PROCESS?
2)WHY IS MERCURY USED IN A THERMOMETER?
3)AN OBJECT THAT IS A GOOD ABSORBER OF
HEAT HAS A SURFACE CONDITION THAT IS ?
4)WHAT IS THE SI UNIT OF HEAT?
5)WHAT IS THE SI UNIT OF TEMPERATURE?
QUESTIONS BY US

13. LOGIC
QUESTION BY
STUDENTS &
TEACHER