Eighth grade science

IXL offers more than 100 eighth 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 more than 100 eighth 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.

A. Science practices and tools

  1. 1
    Identify steps of the scientific method
  2. 2
    Identify laboratory tools
  3. 3
    Laboratory safety equipment

D. Density

  1. 1
    Calculate density, mass, and volume

I. Thermal energy

  1. 1
    Predict heat flow and temperature changes
  2. 2
    Compare thermal energy transfers

K. Waves

  1. 1
    Compare amplitudes, wavelengths, and frequencies of waves
  2. 2
    Compare energy of waves

L. Solutions

  1. 1
    Compare concentrations of solutions
  2. 2
    Diffusion across membranes

M. Classification and scientific names

  1. 1
    Identify common and scientific names
  2. 2
    Origins of scientific names
  3. 3
    Use scientific names to classify organisms

N. Biochemistry

  1. 1
    Structure and function: carbohydrates, lipids, proteins, and nucleic acids
  2. 2
    Understanding the chemistry of cellular respiration

P. Anatomy and physiology

  1. 1
    Organization in the human body: the heart and the circulatory system
  2. 2
    Science literacy: how does the nervous system produce phantom pain?

S. Fossils

  1. 1
    Compare fossils to modern organisms
  2. 2
    Compare ages of fossils in a rock sequence

T. Plant reproduction

  1. 1
    Angiosperm and conifer life cycles
  2. 2
    Moss and fern life cycles

U. Photosynthesis

  1. 1
    How do plants use and change energy?
  2. 2
    Identify the photosynthetic organism

V. Ecosystems

  1. 1
    Describe populations, communities, and ecosystems
  2. 2
    Identify ecosystems
  3. 3
    Describe ecosystems

X. Conservation

  1. 1
    Coral reef biodiversity and human uses: explore a problem
  2. 2
    Coral reef biodiversity and human uses: evaluate solutions

Y. Natural resources and human impacts

  1. 1
    Evaluate claims about natural resource use: groundwater
  2. 2
    Evaluate claims about natural resource use: fossil fuels

Z. Rocks

  1. 1
    Identify rocks and minerals
  2. 2
    Introduction to the rock cycle
  3. 3
    Label parts of rock cycle diagrams
  4. 4
    Select parts of rock cycle diagrams

AA. Earth's features

  1. 1
    Label Earth layers
  2. 2
    Label Earth features at tectonic plate boundaries
  3. 3
    Describe tectonic plate boundaries around the world

BB. Topographic maps

  1. 1
    Select parts of a topographic map

CC. Water cycle

  1. 1
    Label parts of water cycle diagrams
  2. 2
    Select parts of water cycle diagrams

DD. Weather and climate

  1. 1
    Use data to describe climates
  2. •
    New! Factors affecting climate: latitude
  3. •
    New! Factors affecting climate: distance from the ocean
  4. 2
    Explore air masses
  5. 3
    Identify and compare air masses
  6. 4
    How do air masses form?

EE. Climate change

  1. 1
    The greenhouse effect

FF. Natural hazards

  1. 1
    Analyze natural hazard maps