Structures Of Life Pre-test Kettl
Pretest for third grade
- 1.Which of the following seeds is different from the others?
- A.
Bean seeds
- B.
Peach seeds
- C.
Apple seeds
- D.
Orange seeds
- 2.Which structure of the plant holds the embryo (or sprout)?
- A.
Stem
- B.
Leaf
- C.
Seed
- D.
Root
- 3.What do you call the system in which plants grow in a water and nutrient solution?
- A.
Hydroponics
- B.
Germination
- C.
Hydrogen
- D.
Life cycle
- 4.What is most important in the process of germination?
- A.
Light
- B.
Food
- C.
Air
- D.
Water
- 5.Adam wants to set up a hydroponic container for bean seedlings. Which of these will he NOT need?
- A.
Water
- B.
Light
- C.
Nutrients
- D.
Soil
- 6.Even though crayfish are completely covered in a hard shell, they can feel a touch mainly because of their
- A.
Bristles
- B.
Carapace
- C.
Swimmerets
- D.
Tail flaps
- 7.Color, shape and texture are all examples of
- A.
Seeds
- B.
Behaviors
- C.
Foods
- D.
Properties
- 8.We add bleach to water that is used for seeds because
- A.
The bleach prevents mold from growing on the seeds
- B.
The bleach makes the seeds easier to see
- C.
The bleach makes everything smell clean
- D.
The bleach provides energy to the growing seeeds.
- 9.When a crayfish grows, it crawls out of its shell. This is called
- A.
Molting
- B.
The life cycle
- C.
Carapace
- D.
Breaking
- 10.Seeds are found in the part of the plant called the
- A.
Stem
- B.
Root
- C.
Fruit
- D.
Flower
- 11.The beginning of development of a seed after a period of dormancy or rest is
- A.
Flowering
- B.
Molting
- C.
Hydroponics
- D.
Germination
- 12.Something an animal does is called a
- A.
Habitat
- B.
Behavior
- C.
Territory
- D.
Life cycle
- 13.The outer covering of a seed is the
- A.
Seed coat
- B.
Embryo
- C.
Cotyledon
- D.
Dormant
- 14.Which of these is NOT a basic need for a bess beetle?
- A.
Food
- B.
Air
- C.
Space
- D.
Rocks
- 15.Plants can grow in water without soil as long as they also have
- A.
Germination
- B.
Nutrients
- C.
Energy
- D.
Bleach
- 16.Which of these is NOT a fruit?
- A.
Potato
- B.
Tomato
- C.
An orange
- D.
A cucumber
- 17.A class of mostly aquatic animals with hard, flexible shells, jointed legs, and two pairs of antennae is
- A.
Whale
- B.
Sea star
- C.
Crustacean
- D.
Arachnid
- 18.A seed that has one cotyledon is a
- A.
Dicot
- B.
Seed coat
- C.
Embryo
- D.
Monocot
- 19.The kind of organism that lives on or in a plant or animal of a different kind is a
- A.
Parasite
- B.
Exoskeleton
- C.
Fossil
- D.
Structure
- 20.An animal that hunts and catches other animals for food is a
- A.
Herbivore
- B.
Predator
- C.
Omnivore
- D.
Rabbit
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