red
Why does your heart beat faster when running?
More oxygen
Why are leaves green?
Chlorophyll
Why do we wash hands with soap?
Kill germs
Why do polar bears have thick fur?
Why do polar bears have thick fur? A: Thermal warmth
Which organ works 24/7 non-stop?
Heart
What mineral makes our bones strong?
Calcium
What carries water up the stem?
Xylem
What is used to make yogurt?
Good bacteria
What happens if all wolves disappear?
Overpopulation
What passes traits from parents to children?
DNA
Why do we sweat on hot days?
Body cooling
Why do sunflowers turn to the sun?
Phototropism
What do antibiotics kill?
Bacteria
Give an example of an invertebrate animal.
Earthworm, Butterfly ...
Do twins have the same fingerprints?
no
What gas do we inhale?
Oxygen
What do trees produce for us?
Oxygen
Why do we get a fever?
Immune defense
Why do worms emerge after rain?
Need air
What is the largest human organ?
Skin
What helps our skin heal after a cut?
Cell division
Why are mitochondria important for cells?
they produce energy for the cell.
What turns a sliced apple brown?
Oxygen reaction
Who is the producer in a food chain?
Green plant
What causes muscle soreness after exercise?
Lactic acid