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Square in the Grass text page arthropods, observation, fungi, plants, classification, investigations and experiments
Spider Spotting text page food web, invertebrates, arthropods, ecosystem, animals
What is a Food Web? text page, free, checked food web, Impact of humans
Bad Chocolate? text page senses, states of matter, Variables and controls, critical thinking, observation, properties, digestive system, investigations and experiments, mixture, crystals, physical-chemical change
Muscles Don't Push text page muscular system, engineering, structure and function, misconceptions, skeletal system, human body, anatomy
Thoughts on an Exoskeleton text page, free growth and development, invertebrates, adaptation, arthropods, cycles, body covering, structure and function, skeletal system, animals
Bread Bubbles text page cells, growth and development, model, reproduction, respiratory system, digestive system, structure and function, fungi, investigations and experiments
How Does a Butterfly Fly?swallowtail butterfly text page, free adaptation, arthropods, model, muscular system
Spotting Mule Deer text page, johnson invertebrates, arthropods, behavior, ecosystem, reproduction, mammals
Bean Power text page cells, growth and development, osmosis, critical thinking, plant parts, reproduction, structure and function, plants
Breathing Hot and Cold text page states of matter, Variables and controls, critical thinking, observation, thermal energy, engineering, respiratory system, information processing, structure and function, misconceptions, human body, investigations and experiments, water, force and interactions
Who Evolved on First? text page, free, checked genetics, adaptation, critical thinking, misconceptions, evolution, hypothesis, theory, and law, geologic time, fossils
Potato Water text page cells, osmosis, physical-chemical change
Broccoli Science text page cells, Variables and controls, acid-base, plant parts, reaction, plants, investigations and experiments
Thoughts on Trees text page growth and development, photosynthesis, plant parts, plants

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