Year 4. Michael. 10

The process of turning liquid to solid is called_________ .

• freezing

• melting

• substances

• fossils

  Photosynthesis is important because it produces  __________

• oxygen

• fluids

• water

• fats

 Humans breathe in oxygen that ________ produce. 

• plants

• animals

 Animals with backbones are called ______  animals.

• vertebrates

• reptiles

    ____________ is the supportive framework of an animal body

• animal skeleton

• table skeleton

  ___________  belong to a class  of vertebrate animals

• Mammals

• Urchins

  ___________ is an example of solid materials

• Metals

• Water

   Solid is an example of a state of matter

• True

• False

The ________ energy is used to split water molecules into hydrogen and oxygen.

• light

• water

  _____________ make their food through the process of photosynthesis. 

• plants

• Food