Grade 2MP

Category Archives: Science


Comment 0

Asking Questions and Finding Out Answers

In Science, children have been asking questions and finding out answers.  In a lesson on erosion, they looked at a picture of a tree on the beach with its roots exposed.

 

Engage

 

They were encouraged to ask questions about it.  Most of them asked why the roots showed.  They expressed their ideas based on what they saw in the picture.  They also made a model or an illustration of their answers.

 

IMG_3542     IMG_3543

 

Next, the children conducted an experiment to find out the answer.  They thought about what materials to use like clay for the tree, sand and water, and the steps to follow.  Then they blew air on the sand, poured water and recorded their observations.

 

IMG_3558

 

 

IMG_3559

 

They watched a video on erosion to gather more information that could help explain why the roots of the tree were exposed.  Finally, they sequenced pictures that show how erosion  happened.

 

IMG_3581     IMG_3582

 

It was amazing to listen to children’s conversations!  They were encouraged to keep asking questions and share their different ideas.

Comment 0

Habitat

Habitat

  • Freshwater
  • Ocean
  • Desert
  • Forests and rainforests
  • Arctic

Seed dispersal and pollination

  • animals
  • wind
  • water
Comment 0

Interdependent Relationships in Ecosystems

Freshwater habitat

  • Kinds:  rivers and streams, lakes and ponds, wetlands like swamps and marshes
  • Examples of plants:  trees with thick roots (e.g., cypress), lily pads, cattails, grasses, mosses
  • Example of animals:  frogs, turtles, alligators, snakes, fish, birds (e.g., heron), beavers, raccoons, otters, opossums, muskrats, mussels, water striders, dragonflies
Comment 0

Changes in Matter and Mixture

Changes in matter – some changes may be caused by heating or cooling that can or cannot be reversed

  • Physical changes – changes that can be reversed (e.g., water and butter at different temperatures)
  • Chemical changes – changes that cannot be reversed (e.g., cooking an egg, freezing a plant leaf, burning a paper)

Mixture – made of two or more things but does not result to a new matter (each part is still there)

  • Mixture with parts that can easily separate or take apart (e.g., mixture of cereal, raisins and dry fruits)
  • Mixture with parts that can dissolve or break up into pieces too small to see (e.g., mixture of drink mix and water)
Comment 0

Measurement of and Changes in Matter

Measurement of matter

  • Length, height and width of solids
  • Volume of solids and liquids
  • Mass of solids and liquids

Physical change in matter – change in appearance, shape, size or state of matter (e.g., cutting paper, melting ice, sanding wood)

  • http://www.deped.gov.ph/