WorksheetsCFB 7th Science IA#3 Review (Chemistry/Physics)
Total questions: 30
Worksheet time: 15mins
The elements on the left side of the periodic table are generally
more reactive and poor conductors
more reactive, good conductors, shiny, malleable
less reactive, poor conductors, dull, brittle
less reactive and good conductors
The elements on the right side of the periodic table are generally
more reactive and poor conductors
more reactive, good conductors, shiny, malleable
less reactive, poor conductors, dull, brittle
less reactive and good conductors
The property of reactivity is
the capacity to undergo a chemical change with other elements
the capacity to be hammered or pressed out of shape without breaking
the capacity to transfer heat or electricity
the capacity to reflect light
What do arrows in a food web indicate?
The direction the wind if blowing
How much the animal eats
The direction the energy flows
The climate of the ecosystem
What would be an early sign of primary succession?
forest fire burns all the tress to the ground
lichen and moss growing on volcanic rock
all the populations of animals die from disease
animals competing for resources
Unbalanced forces cause an object to ...
speed up
slow down
change direction
any of the above
Every organic compound contains...
carbon
helium
sodium
titanium
Which is an example of no work being done on an object
the book sits on the table
the book is stationary
the book sits on the shelf
all of the above
If a book is sitting on a table, the forces acting on it are...
balanced
unbalanced
no way to know
it depends on the book
