Science and Technology, Grade 2

Unit 1: STEM Skills and Connections

Breaking coding problems into small steps, thinking about how coding and new technology change everyday life, spotting science and technology in the jobs and tools around us, and learning about people from many communities who help science grow.

• Breaking coding problems into smaller steps

• Noticing how coding and new technology affect everyday life

• Finding science and technology at home and in the community

• Learning about contributions from many communities

Unit 2: Growth and Changes in Animals

How animals' features stay the same or change, how they move, their life cycles, how they change as they grow, adaptations that help them survive, and how animals and humans affect each other.

• How animals affect people and nature
• Reducing harm from animals' impacts
• How people affect animals and their homes

• Animal features that stay the same or change
• How animals move
• The life cycle of animals
• How animals change as they grow
• Adaptations that help animals survive

Unit 3: Properties of Liquids and Solids

Sorting liquids and solids, their properties, how water changes state, mixtures, buoyancy and absorbency, safety symbols, and using liquids and solids responsibly.

• Using, storing, and disposing of liquids and solids safely
• How changes of state affect us

• Sorting matter into liquids and solids
• Properties of liquids and solids
• Liquid water and solid water
• When states stay the same and when they change
• Making useful mixtures
• Floating, sinking, and soaking up water
• Safety symbols on substances

Unit 4: Movement and Simple Machines

How objects move and change position, the six simple machines and how they're used, comparing the force needed with and without a machine, and how simple machines affect our lives and the environment.

• Simple machines in daily life
• Simple machines and the environment

• Ways an object can move
• Changing an object's position
• The six simple machines
• How each simple machine is used
• Comparing force with and without a machine

Unit 5: Air and Water in the Environment

Properties of air and water, where water comes from, the water cycle, the three states of water, and how living things depend on air and water — plus protecting these resources.

• How human activities affect air and water
• A plan to protect local air or water
• Using water responsibly at home
• Fresh water around the world

• Properties of air and water
• Where water comes from
• The stages of the water cycle
• The three states of water
• How living things depend on air and water