what does this symbol mean?

• Fire

• Danger

• Flammable

• Combustible

What is a dependent variable

• what you change

• what you measure

• what you keep the same

Select the correct levels of organisation

• cell-organ-tissue-system

• cell-tissue-organ-system

• cell-system-tissue-organ

how would you separate salt from a mixture?

• evaporation

• distillation

• filtration

Which of these is not true of solids?

• Solids cannot flow

• a solid expands to fill its container

• solids will stay the same shape and side unless acted upon by a force

• the particles of a solid are in a fixed position

Which of the following is not present in an animal cell?

• cell membrane

• vacuole

• cytoplasm

• nucleus

which part of a plant cell absorbs light energy from the sun?

• cell wall

• cytoplasm

• vacuole

• chloroplast

what is the role of a red blood cell

• to transport glucose

• to transport oxygen

• to transport nutrients

• to transport carbon dioxide

Which of the following is not true about the ventricles of the heart?

• They are the lower chambers of the heart

• They are the upper chambers of the heart

• they have more muscle than the atria

• the pump blood

How would you separate sand from a mixture?

• distillation

• evaporation

• combustion

• filtration