If you are looking for a list of grade appropriate topics, here it is. There are many more than can be added but this is a basic list. Here is a printable as well in case you decide to make your own.
Materials
Identify properties of an object Compare properties of objects Compare properties of materials Identify materials in objects
Identify multiple materials in objects
States of matter
Classify matter as solid, liquid, or gas Identify solids, liquids, and gases Sort solids, liquids, and gases
Phase change
Change-of-state diagrams: solid, liquid, and gas Heating, cooling, and changes of state
Heat and thermal energy
Predict heat flow
Predict temperature changes
How is temperature related to thermal energy?
Physical and chemical change
Identify physical and chemical changes Compare physical and chemical changes
Mixtures
Identify mixtures
Force and motion
Identify pushes and pulls
How do balanced and unbalanced forces affect motion? How do mass and force affect motion?
Compare the speeds of moving objects
Electricity
Introduction to static electricity and charged objects
Magnets
Identify magnets that attract or repel Label magnets that attract or repel Compare strengths of magnetic forces
Classification
Identify living and nonliving things
Identify plants and animals
Identify mammals, birds, fish, reptiles, and amphibians Identify vertebrates and invertebrates
Animals
Read animal life cycle diagrams
Construct animal life cycle diagrams
Compare stages of an animal’s life cycle
Compare different animals’ life cycles
Benefits of group behavior: North American caribou Benefits of group behavior: African wild dogs Benefits of group behavior: leaf-cutter ants
Human organs and their functions
Plants
Classify fruits and vegetables as plant parts
Identify plant parts and their functions
How do plants make food?
Read and construct flowering plant life cycle diagrams How do flowering plants make new plants?
Traits
Observe and compare traits
What affects traits? Use observations to support a hypothesis
Adaptations
Introduction to adaptations
Animal adaptations: beaks, mouths, and necks Animal adaptations: feet and limbs
Animal adaptations: skins and body coverings
Heredity
Match offspring to parents using inherited traits
Identify inherited and acquired traits
Inherited and acquired traits: use evidence to support a statement Read a plant pedigree chart
Read an animal pedigree chart
Ecosystems
Identify ecosystems
Describe ecosystems
Identify roles in food chains
How does matter move in food chains? Interpret food webs
Rocks and minerals
Classify rocks and minerals by color, shape, and texture Identify minerals using properties
Identify rocks using properties
Classify rocks as igneous, sedimentary, or metamorphic
Fossils
Introduction to fossils
Compare fossils to modern organisms
Compare ancient and modern organisms: use observations to support a hypothesis
Weather and climate
Read a thermometer
Compare temperatures on thermometers
Collect and graph temperature data
What’s the difference between weather and climate? Weather and climate around the world
Weather or climate? Cite text
Use data to describe U.S. climates
Use data to describe world climates
Earth’s features
Water on Earth
Volcanoes Mountains Hills Forests Desert
Earth events
Classify changes to Earth’s surface
Find evidence of changes to Earth’s surface earthquakes
volcanic eruptions
erosion
Engineering practices
Solve problems using magnets
Evaluate multiple design solutions to prevent flooding
Identify the best design solution to prevent hurricane damage
Units and measurement
Choose units of time
Choose customary units of distance Choose metric units of distance Abbreviate time and length units Abbreviate mass and volume units