4th grade science Unit 1

  1. When an organism is no longer alive on earth.
    extinct
  2. The smallest unit that makes up all living things.
    Cell
  3. The living and nonliving things in an environment, and all their interactions.
    ecosystem
  4. The set of steps in which organisms get the food they need to survive.
    food chain
  5. Any evidence of an organism that lived in the past.
    fossil
  6. A organism's home.
    habitat
  7. The largest group into which an organism is classified.
    kingdom
  8. A group of tissues that work together to do a certain job.
    organ
  9. The smallest group into which an organism is classified.
    spicies
  10. A group of similar cells that work together to carry out a job.
    tissue
  11. A group of organs that work together to carry out life functions.
    Organ system
  12. Any of the one-celled organisms that live in water.  They look like a blob with a dot in the middle.
    Protist
  13. What is one thing looking at fossils can help you know?
    How things have changed over time.
  14. What part of a cell is missing from all bacteria?
    Nucleus
  15. Scientists classify organisms into 6 groups:  ancient bacteria, true bacteria, protist, fungus, plant, and animal - these are called.....
    kingdoms
  16. Many fossils are skeletons preserved in this...
    rock
  17. The oldest fossils are in the oldest rock layers found in this layer of rock...
    bottom layer
  18. The youngest fossils are int he youngest rock layers found in this layer of rock...
    The top layer
  19. A period when many different species died out.
    mass extinction
  20. What do we call the living part of an ecosystem?
    Community
  21. What do we call a part of a community made up of one type of organisms.
    population
  22. What is an organisms home called?
    A habitat
  23. What do we call the organisms that break living and dead matter into simple chemicals?
    Decomposers
  24. What do we call the steps by which organisms get the food they need to survive?
    food chain
  25. A consumer is something that uses the food produced by a producer.  Name 3 consumers...
    beetle, bird, person....
  26. What can you find in a plant cell that you won't find in animal cells?
    chlorophyll
  27. Name another animal that would fit into this animal group:  tiger, cheetah, lion, cougar...
    cat
  28. Name 5 basic life functions that all living things carry out.
    • 1.   They all grow and develop.
    • 2.  They all use energy.
    • 3.  They all reproduce.
    • 4.  They all respond to the environment.
    • 5.  They all get rid of wastes.
  29. Name a producer....
    tree, flower, grass...
  30. Name a decomposer...
    fungi, bacteria, mold...
  31. Name a few things plant cells have that animal cells do not.
    chlorophyll, cell wall, and chloroplast
  32. All living things need these 4 things...
    water, oxygen, food, and shelter
  33. Name the three basic differences in plant and animal cells.
    covering, color, and shape
  34. The characteristics of a living thing that organisms in each kingdom share.
    traits
  35. Organisms are scientifically named by naming these two things in the correct order.
    genus and species (in that order)
Author
bdoering
ID
224900
Card Set
4th grade science Unit 1
Description
ASLS 4th grade science unit 1 flashcards
Updated