Energy
What is the difference between energy transfer and energy transformation?
Transfer = energy moves from one place to another; Transformation = energy changes form.
What is the basic unit of life?
Cells
Which organ pumps blood around the body?
Heart
What is the centre of an atom called?
Nucleus
I help you breathe
Lungs
Name the energy transformation that occurs in a torch.
Chemical → electrical → light (and heat).
What is the order of smallest to largest from cell>_____>______>_____organism
Cell>Tissue>Organ>Organ system>Organism
What is the difference between veins and arteries?
Veins: Carry blood to heart
Arteries: Carry blood away from heart
Which particles are found in the nucleus?
Protons and Neutrons
I coordinate and control the body
Brain
Why does a metal spoon feel colder than a wooden spoon at the same temperature?
Metal transfers heat away from your hand faster.
Which organelle is responsible for making energy in the cell?
Mitochondria
Right: blood to lungs
Left: blood to rest of body
What charges to protons, neutrons and electrons have?
Protons: Positive
Neutrons: Neutral (no charge)
Electrons: Negative
I digest most nutrients from food
Intestine (small)
A toaster converts electrical energy into what two main forms of energy?
Heat energy and light energy.
If your microscope has a eyepiece has a magnification of 10X and you change your objective from 10X to 40X, how much INCREASE in magnification have you gone up?
300X (400X-100X)
Which structure of the heart prevents blood moving back the wrong direction?
Valves
What does the atomic number on the periodic table tell you?
The number of protons in that atom
I filter waste from the blood
Kidneys
A hot chocolate cools down when left on a table. Where does the heat energy go?
Into the surrounding air and environment.
List 2 similarities and 2 differences between plant cells and animal cells
Similarities: same organelles, same cell membrane
Differences: Plants have chloroplasts and cell wall
Outline why the left ventricle wall is thicker than the right ventricle wall and name the structure that separates them
Right ventricle only has to send blood to the lungs which are close by whereas the left ventricle is pumping blood to the whole body. Septum separates them.
Which element on the periodic table has 8 protons?
Oxygen
I am the largest internal organ in the human body. I help process nutrients and remove toxins. What am I?
Liver