Energy & Forces
What do plants need from the sun to make food?
👉 Answer: Light
Name the three states of matter.
👉 Answer: Solid, liquid, gas
What is the main source of energy for the Earth?
What is the process of planting trees to replace cut-down ones?
👉 Answer: Reforestation
What is the basic unit of life?
👉 Answer: The cell
What do we call a push or a pull?
👉 Answer: Force
Ice and steam are all forms of what substance?
water
The Sun gives us heat and what other type of energy?
👉 Answer: Light
Which planet do we live on?
👉 Answer: Earth
What gas do we need for fire to burn?
👉 Answer: Oxygen
Name two forms of energy.
Heat and light (others acceptable: sound, kinetic, potential, etc.)
Which state of matter has a fixed shape?
👉 Answer: Solid
What pulls us down to the ground when we jump?
👉 Answer: Gravity
What should we do with garbage: throw it anywhere or put it in a bin?
👉 Answer: Put it in a bin
Which organ system helps us break down food into nutrients?
👉 Answer: Digestive system
What type of energy is stored in food and fuel?
👉 Answer: Chemical energy
What do we call the air we breathe out?
👉 Answer: Carbon dioxide
Which simple machine is found on a see-saw?
👉 Answer: Lever
Name one way we can keep the beach clean.
Answer: By not littering (other answers possible: picking up trash, recycling)
What type of blood cells help the body fight diseases?
👉 Answer: White blood cells
Which force slows a ball rolling on grass?
👉 Answer: Friction
True or False: Salt mixed with water makes a solution.
👉 Answer: True
Which force slows things down when they rub together?
👉 Answer: Friction
What is frozen water called?
👉 Answer: Ice
What gas do plants take in from the air during photosynthesis?
👉 Answer: Carbon dioxide