Science fair

What is the first thing that a scientist does?

• Study

• Experiment

• Hypothesis

• Ask a question

this is the symbol for a _____?

• switch

• wire

• bulb

• cell

This is the symbol for a ...

• resistor

• buzzer

• bulb

• voltmeter

Temperature, light, air, water, and soil are all _____ parts of the environment.

• living things

• biotic

• abiotic

• producer

What is an example of a biotic factor?

• sand

• river

• snake

• stone

A population is...

• moving pollen from anther to stigma

• the number of individuals in a a group of living things

• Multiple species that live in one area

• a harmful substance has been added to the environment

In an exothermic reaction, heat is ...

• taken in

• given out

Is photosenthysis an Exothermic or an Endothermic reaction?

• Exothermic reaction

• Endothermic reaction

• phytoextraction

Endo means in or _______.

• realesed

• absorbed

• chemical

• reaction

Dissolving ammonium nitrate is ______________ reaction.

• endothermic

• exothermic

• chemical