Saint Louis Zoo
Introduction to Natural Selection: Darwin & Lamarck
Charles Darwin and Jean Baptiste Lamarck are credited for developing the theory of natural selection. After teaching your beginning biologists about acquired characteristics, they read the included selection and answer questions that...
It's About Time
The Nitrogen and Phosphorous Cycles
How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...
Cheetah Outreach
Life Cycles
How does a cheetah life cycle differ from a human life cycle? Kids graph weight gain for humans versus cheetahs and compare other life cycle events such as gestation and life span
Curated OER
Butterfly Life Cycle
Focused little scientists will flitter their arms back and forth across the room with excitement as they learn the life cycle of a butterfly and how living things grow and change over time.
Curated OER
The Water Cycle Story
In this recognizing the vocabulary for the water cycle learning exercise, students use the words in the word bank to fill in the blanks and complete the sentences. Students write 8 answers.
K-State Research and Extensions
Water
How are maps like fish? They both have scales. The chapter includes six different activities at three different levels. Scholars complete activities using natural resources, learn how to read a map, see how to make a compass rosette,...
Curated OER
Food Chains, Food Webs, Biomass Pyramids and Cycle
In this food chain worksheet, students review terms associated with food chains and food webs. Students also recall the water cycle.
Curated OER
A Model for Natural Selection- Spaghetti Worms
Does the early bird really get the worm? If so, which color of worm does it prefer? In an exciting and easy week-long field investigation, young field biologists set up a one square meter feeding area for birds. If you have a webcam,...
Curated OER
Cycles in Nature
In this nature cycle worksheet, learners complete 12 word scrambles and 4 fill in the blank questions about the different cycles of nature.
Curated OER
Waterdrops Water Cycle
In this earth science instructional activity, students read an article about the water cycle. Then they continue the story about the travels of a water droplet through time and space. Students also complete sentences by writing in the...
University of Miami
What is it? Weathering, Erosion, or Deposition?
Just as rocks move through the rock cycle, your giddy geologists will move descriptions around until they are all in the correct category. After cutting out several types of rock movement, learners determine whether the action is...
NASA
Water Works on a Blue Planet
Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...
Curated OER
A Model of the Rock Cycle
In this rock cycle worksheet, students use different colored crayons to represent different types of rocks. They follow step by step procedures to model the rock cycle with the crayons. Students draw the rock cycle, show weathering,...
Journey Through the Universe
Going through a Phase
Ignore the full moon, it's just a phase. Young scholars observe and record the moon during a full cycle before learning to predict future phases. Then the instructor leads a discussion on the other solar system objects that also go...
K12 Reader
The Rock Cycle
This cross-curricular reading comprehension worksheet asks kids to read a passage of the rock cycle and then to use information in the article to respond to a series of questions.
Curated OER
Life Cycle: Diversity in a Balance
In this life cycle workbook, 3rd graders complete several different activities in which they analyze different invertebrates, identify arthropods, examine human biology and plants, and study natural environments. 20 different activities...
San Francisco Public Utilities Commission
What is Drought? No Rain, No Water
How can climate change affect our water supply? Have kids read a passage about the water cycle and water conservation, which includes six questions that challenge them to use context clues.
Curated OER
The Carbon Cycle
In this carbon cycle worksheet, students will read about the carbon cycle and study a diagram showing what creates carbon dioxide and what uses carbon dioxide. Students will then complete 4 short answer questions.
Curated OER
The Rock Cycle
In this rock cycle worksheet, students match 5 terms with their definitions about rocks and minerals, they fill in 5 blanks to complete sentences about types of rocks and they identify kinds of rocks and processes in the rock cycle.
Curated OER
Life Cycles
In this life cycles worksheet, students compare the life cycles of 2 different species and answer short answer questions about them. Students can choose the species to compare and then answer 6 questions.
Curated OER
Life Cycle: Diversity in a Balance 4th Grade Workbook
In this life cycle workbook, 5th graders examine plant and animal cells, classification of organisms, human biology, photosynthesis, and natural environments. 21 different activities make up the Life Cycle Workbook.
Curated OER
Bluebirds Project - Life Cycles
In this bluebirds worksheet, students complete a table and answer short answer questions about the life cycle of bluebirds. Students complete 1 chart and answer 5 questions.
Curated OER
Researching the Nutrient Cycle
In this researching the nutrient cycle worksheet, students read about the cycle of nutrients, look at the diagram, then answer two questions by doing research on this topic.
Curated OER
The Flower and the Fly
It's like a biological "Beauty and the Beast!" The fascinating mutualism between a South African meganosed fly and a deep-throated geranium builds a case study in coevolution for your biology buffs to analyze. After reading about this...