Write any one of the following experiment?
Include: Aim, Material, Observation, Inference
2] To study three states of water.
Answers
Answer:
Materials
- two balloons
- tape
- ruler or yardstick
- string
- pin
Method
Have your students inflate the balloons until they
are the same size; then tie them shut. Have them
put a piece of tape on one of the balloons near the
opening, and use 2 pieces of string to tie one
balloon to each end of the ruler or yard stick.
Have them tie another piece of string around the
centre of the ruler and hang it up so that the two
balloons are balanced and they do not rub against
a wall.
Take the pin and make a small hole in the tape on
the one balloon. When you step away, make sure the
two balloons are still balanced.
Observations
The balance changes as the air in the one balloon
leaked out and the balloon became lighter.
Conclusions - Air has weig
Explanation:
Materials
- a globe or map of the earth
- a small flashlight. Observations
Method The shape and the intensity of the light changed
when they shone it on the Tropic of Cancer because In a darkened classroom, have your students shine
the beam hit the surface at an angle and spread over the light directly down on the equator. Is the light
a larger area. bright? Can you see its outline clearly?
Keeping the flashlight at the same height and over Conclusions
the equator, have them tilt the flashlight so that it The earth's tilt affects the strength of the sun's rays
shines on the Tropic of Cancer, north of the equator. at different points on the earth's surface.
Does the area of light look like the one which was
created when they shone the flashlight directly on
the equator? Does the light cover a larger area?
What does the shape of the light look like? Are some
parts of the area lit by the flashlight brighter than
others?
Answer:
Answer:
Materials
- two balloons
- tape
- ruler or yardstick
- string
- pin
Method
Have your students inflate the balloons until they
are the same size; then tie them shut. Have them
put a piece of tape on one of the balloons near the
opening, and use 2 pieces of string to tie one
balloon to each end of the ruler or yard stick.
Have them tie another piece of string around the
centre of the ruler and hang it up so that the two
balloons are balanced and they do not rub against
a wall.
Take the pin and make a small hole in the tape on
the one balloon. When you step away, make sure the
two balloons are still balanced.
Observations
The balance changes as the air in the one balloon
leaked out and the balloon became lighter.
Conclusions - Air has weig
Explanation:
Materials
- a globe or map of the earth
- a small flashlight. Observations
Method The shape and the intensity of the light changed
when they shone it on the Tropic of Cancer because In a darkened classroom, have your students shine
the beam hit the surface at an angle and spread over the light directly down on the equator. Is the light
a larger area. bright? Can you see its outline clearly?
Keeping the flashlight at the same height and over Conclusions
the equator, have them tilt the flashlight so that it The earth's tilt affects the strength of the sun's rays
shines on the Tropic of Cancer, north of the equator. at different points on the earth's surface.
Does the area of light look like the one which was
created when they shone the flashlight directly on
the equator? Does the light cover a larger area?
What does the shape of the light look like? Are some
parts of the area lit by the flashlight brighter than
others?
Explanation:
Hope this answer will help you.