CE Daily Challenge #02

What is the best description of RESPIRATION?

select 2…

• breathing

• burrning glucose

• exercising / running around

• releasing energy

Answer explanation

RESPIRATION is burning glucose, usually using oxygen to release energy...

What stain would you use on a plant cell if wanted to look at it under a microscope?

• methylene blue

• iodine

• Sundan 3

• copper sulfate

What is the chemical test for CARON DIOXIDE?

• Lime water

• Going pop in a flame

• Putting out a flame

• Relights a glowing splint

Answer explanation

Carbon dioxide makes lime water go from clear to cloudy

What are ATOMS?

• the smallest simplest particle

• the same type of particle

• they are found on the periodic table

• metals

Answer explanation

Atoms are the smallest and simplest particles that cannot be broken down into anything smaller

What are the units for ENERGY?

• Newtons

• Joules

• Pascals

• degrees Celcius

Select all the MAGNETIC MATERIALS

• iron

• aluminium

• copper

• nickel

Answer explanation

Magnetic materials are: Iron, Steel, Cobalt and Nickel.

What is the moment on the left-hand side of this lever? (anticlockwise moment) in N.cm

Answer explanation

Moment = 2x180 = 360 Ncm

[The oher distance = 360 / 3 = 12oN

In experiment to see which temperature is best for seeds to germinate, what would the INDEPENDENT VARIABLE be?

• amount of light

• temperature

• water

• type of sseds

Answer explanation

INDEPENDENT - choosing to change.. the temperature...