This document summarizes an experiment to test which container - a dull black one or a bright shiny one - keeps iced milk tea colder when exposed to sunlight. The experiment involves filling each container with milk tea, placing them in sunlight, and measuring the temperature every 5 minutes for 20 minutes total. The results show that the temperature in the bright shiny container increased more slowly, allowing it to keep the milk tea colder for longer. Therefore, the conclusion is that lighter colored containers absorb less heat from sunlight and better maintain the cool temperature of the contents.

1. ACTIVITY 4:
KEEP IT
COLD
PREPARED BY: THE GROUP 4

2. WHAT IS
RADIATION?

3. •The transfer of energy from
the sun across nearly empty
space is made possible by
it.
•All objects even ordinary
one gives off heat into

4. OTHER MEANINGS OF
RADIATION:
•Energy that comes from a source in the form of
wave or rays you cannot see.
•A type of dangerous and powerful energy that
is produced by radioactive substances and
nuclear reactions.
•The combined processes of emission,
transmission, and absorption of radiant energy;

6. NOTE:
ALL OBJECTS EMIT AND ABSORB
RADIATION ALTHOUGH SOME
OBJECTS ARE BETTER AT EMITTING
OR ABSORBING RADIATION THAN
OTHERS.

7. THE LABORATORY
ACTIVITY

8. THE SITUATION:
One hot sunny day, Cobi and Mumble
walked into a tea shop and each asked for
an order of iced milk tea for takeout. The
crew told them as part of their promo their
costumers can choose the color of the
tumbler they want to use, pointing to the
array of containers made of the same

9. Cobi favoured the container with
a dull black surface, saying that
the milk tea will stay cooler if it
is in a black container.

10. Mumble remarked that
the tea would stay even
cooler if it is in a
container with bright
shiny surface.

11. MATERIALS NEEDED FOR THE
EXPERIMENT:
•Milk tea
•Laboratory thermometer
•Tumblers/Containers(Dull black
and Bright shiny)

12. PROCEDURES:
1. First, prepare the containers.
2.Fill up the containers with the milk tea.
3.And put the containers on the area
where sunlight can strike through.
4.And put thermometers on both
containers.
5.And measure the temperature every 5

13. TUMBLER A TUMBLER
B

14. Cu
p
0
min
5
min
10
min
15
min
20
min
Dull
Black
Contain
er
5 10 13 15 15
Bright
Shiny 5 8 12 13 14
Temperature ( ˚C)

15. CONCLUSION/GENERALIZATI
ON:
We therefore conclude that,
the lighter the object the longer
that the longer that it can keep
the milk tea cold because a light
color doesn’t absorb much