Third grade science

IXL offers dozens of third grade science skills to explore and learn! Not sure where to start? Go to your personalized Recommendations wall to find a skill that looks interesting, or select a skill plan that aligns to your textbook, state standards, or standardized test.

IXL offers dozens of third grade science skills to explore and learn! Not sure where to start? Go to your personalized Recommendations wall to find a skill that looks interesting, or select a skill plan that aligns to your textbook, state standards, or standardized test.

B. States of matter

  1. 1
    Classify matter as solid, liquid, or gas
  2. 2
    Identify solids, liquids, and gases
  3. 3
    Sort solids, liquids, and gases

C. Phase change

  1. 1
    Change-of-state diagrams: solid, liquid, and gas
  2. 2
    Heating, cooling, and changes of state

D. Heat and thermal energy

  1. 1
    Predict heat flow
  2. 2
    Predict temperature changes
  3. 3
    How is temperature related to thermal energy?

E. Physical and chemical change

  1. 1
    Identify physical and chemical changes
  2. 2
    Compare physical and chemical changes

F. Mixtures

  1. 1
    Identify mixtures

G. Force and motion

  1. 1
    Identify pushes and pulls
  2. 2
    How do balanced and unbalanced forces affect motion?
  3. 3
    How do mass and force affect motion?
  4. 4
    Compare the speeds of moving objects

H. Light

  1. •
    Coming soon: How does light travel and interact with matter?

I. Electricity

  1. 1
    Introduction to static electricity and charged objects

J. Magnets

  1. 1
    Identify magnets that attract or repel
  2. 2
    Label magnets that attract or repel
  3. 3
    Compare strengths of magnetic forces

K. Classification

  1. 1
    Identify living and nonliving things
  2. 2
    Identify plants and animals
  3. 3
    Identify mammals, birds, fish, reptiles, and amphibians
  4. 4
    Identify vertebrates and invertebrates

N. Traits

  1. 1
    Observe and compare traits
  2. 2
    What affects traits? Use observations to support a hypothesis

O. Adaptations

  1. 1
    Introduction to adaptations
  2. 2
    Animal adaptations: beaks, mouths, and necks
  3. 3
    Animal adaptations: feet and limbs
  4. 4
    Animal adaptations: skins and body coverings

Q. Ecosystems

  1. 1
    Identify ecosystems
  2. 2
    Describe ecosystems
  3. 3
    Identify roles in food chains
  4. 4
    How does matter move in food chains?
  5. 5
    Interpret food webs

S. Fossils

  1. 1
    Introduction to fossils
  2. 2
    Compare fossils to modern organisms
  3. 3
    Compare ancient and modern organisms: use observations to support a hypothesis

U. Earth's features

  1. 1
    Bodies of water
  2. 2
    Water on Earth
  3. 3
    Natural resources
  4. 4
    Identify Earth’s land features

W. Engineering practices

  1. 1
    Solve problems using magnets
  2. 2
    Evaluate multiple design solutions to prevent flooding
  3. 3
    Identify the best design solution to prevent hurricane damage

X. Units and measurement

  1. 1
    Choose units of time
  2. 2
    Choose customary units of distance
  3. 3
    Choose metric units of distance
  4. 4
    Abbreviate time and length units
  5. 5
    Abbreviate mass and volume units