Thursday, February 2, 2017

The effect of gravity on speed

-put the ramp against the seat of a chair.Place the ramp and chair so that the ramp points towards the hallway.Have your teammate on the other endd of the hallway.
-place the ball bearing at the top of the ramp.
-lift the ramp 20 cm and release the ball bearing
-time how long it takes to travel 5 metres
-see how far it will go
-repeat the experiment three times for each height then do 40 cm, 60 cm and 80 cm

HEIGHT                                         TIME TO TRAVEL                       DISTANCE TRAVELLED
    20                                                      4.72 sec                                                5 m. 90 cm.
    40                                                      8.78 sec                                                5 m. 60 cm.



Wednesday, November 16, 2016


Causes of Acid Rain
    The SO2 and NOX react with water, oxygen and other chemicals to form sulfuric and nitric acids.These then mix with water and other materials before falling to the ground.

Effect of Acid Rain
  • Burning of fossil fuels to generate electricity.
  • Vehicles and heavy equipment.
  • Manufacturing, oil refineries and other industries.
Cure of Acid Rain
    Use of alternative sources of energy, decreasing energy consumption and using alternative forms of transport. Acid rain results from the deposition of nitrogen oxides and sulfur dioxide in the atmosphere, which occurs when fossil fuels are burned.

Thursday, September 1, 2016





The producer is grass.The ant eat grass the ant is consumer.The birds eat ant the birds is consumer 2. And it will be like this when it on the food chain.

Thursday, August 25, 2016


Symbiosis: This comes from a Greek word simply meaning 'living together' and can be used to describe any association between two organisms.

Mutualism: This can be used to describe an association in which both organisms apparently benefit

Example: relationship between bullhorn acacia trees and certain species of ants.

Parasitism In this association one organism benefits, and the other is adversely affected. This description would also fit the relationship between a carnivore and its live prey and a herbivore and the plant it feeds on, especially if they are very specialized in the food they eat. 

Example:Fleas and mosquitoes feed on blood from other organisms.

Commensalism is a type of relationship where one of the organisms benefits greatly from the symbiosis. The other is not helped but is not harmed or damaged from the relationship. In other words, this is a one-sided symbiotic relationship.
Example: the relationship between cattle egrets and cattle.

Wednesday, July 27, 2016

My favorite activity in this term.Is fish lab because It so exciting interesting and I like fish.And It is the first lab in this term.

Thursday, July 21, 2016

Teeth are very sharp on Polar Bears, and they use them too as weapons in these battles. As a result these teeth can be damaged or knocked out. After many such battles it can become extremely hard for Polar Bears to continue eating their diet as they are carnivores. This too can result in them eventually starving to death as well.

This is why you will find that they stay in very large groups. Most of the time these land animals won’t attack unless they can get a seal alone. However, if they are hungry enough they will advance and do what they can as an instinct of survival.