General Science Class 4th Quiz

General Science Class 4th

• Characteristics of Organisms:

  • Butterflies, birds, and bats share teeth
  • Plants produce fruits to protect seeds
  • Fish are vertebrates that swim in water
  • Vertebrates have backbones, invertebrates do not.
  • Characteristics of all living things include breathing, moving, growing, and needing oxygen

• Life Processes of Organisms:

  • Plants provide oxygen to the environment
  • Animals need oxygen
  • Animals and plants both reproduce.
  • Animals and plants both respire
  • Animals and plants both need food

• Classification of Animals:

  • Animals are categorized based on the presence or absence of a backbone (vertebrae)
  • Vertebrates and invertebrates are two groups

• Plant Parts:

  • Non-flowering plants lack flowers
  • Roots, shoots, leaves, and flowers are typical plant parts.
  • Flowering plants are those where flowers grow.

• Animal Teeth:

  • Incisors are teeth used for tearing food
  • Premolars are used for tearing and crushing food
  • Canines are used for piercing
  • Molars are used for grinding food

• Animal Adaptations:

  • A tiger's large canines are used to pierce prey, to kill and eat.
  • A rat's large incisors are for biting and eating.

• Classification of Plants:

  • Flowering plants have flowers and are distinguished from non-flowering ones.
  • Examples of flowering plants include apples, roses, and mangoes.
  • Examples of non-flowering plants include pines.