Gr 3 forces and structures
What is a force?
A push or a pull that can make an object start or stop moving.
What are three things that plants need to survive?
Air, water, space
Rain and snow are examples of:
a) Evaporation
b) Condensation
c) Precipitation
c) precipitation
Energy at work is...
a) Kinetic energy
b) Potential energy
a) kinetic
The place where animals live is known as a:
a) Habitat
b) Adaptation
c) Creation
a) habitat
Tell me two natural structures
Nest, shell, tree
What is photosynthesis and why is it important?
Photosynthesis is the process that allows plants to make their own food. Plants need to make their own food in order to survive.
When ice changes from a solid to a liquid, it:
a) Melts
b) Freezes
c) Evaporates
a) melts
List 3 things that animals need:
Air, water, shelter, space, food
What is something that can protect a person from the impact of a force?
Seatbelt, helmet, elbow pads
What is strength?
Ability to support a load
What do we call the layers of soil?
Horizons
List the three states of matter:
Solid, liquid and gas
List 3 ways that animals use locomotion:
Slither, walk, run, fly, swim
What part of a flower makes pollen?
Stamen
Which option is the best example of high friction?
a) Sliding down a slide
b) Car tires on a road
c) Walking in socks on a tile floor
d) Sledding down a snowy hill
b) Car tires on a road
What is fertlizer?
Used to help plants grow
List two hazards mentioned in this unit (solids and liquids)
Explosive, corrosive, flammable
List three types of simple machines:
Wedge, lever, pulley, wheel and axle, screw, inclined plane.
What is a structure?
Something that has a definite size, shape and can support a load.
What are the 5 forces?
Gravity, magnetism, friction, electrostatic, muscular
List 3 particles that make up soil
1. Sand. 2. Silt. 3. Clay
List the parts of the water cycle
Evaporation
Condensation
Precipitation
Collection
What is an animal adaptation?
An adaptation is a characteristic of an animal that helps it survive in its environment. An example of an adaptation is a polar bear’s white fur in a snowy habitat.
What part do turtles and snails have for protection?
a) Wings
b) Shells
c) Legs
b) shells