Free practice tests · Kids & Youth
Stuff Every Plant Science Scout Should Know: free practice in 30-second cards
Stuff Every Plant Science Scout Should Know
Practice facts for the Plant Science merit badge. Not an official Scouting America credential.
Start Stuff Every Plant Science Scout Should Know ⚡ Today's sprint 🎙️ Voice mode
Free to start, no sign-up. 80 cards so far. One Knowledge Score and day streak across all your courses.
Questions people ask
Is this practice test free?
Yes. The first 50 cards are free for everyone with no sign-up, each with the answer, why it is right and its sources. Aha Trivia members get all 80 cards and timed practice exams.
How many practice questions are there?
80 practice questions so far. Each one is a 3-choice card that takes about 30 seconds, and the course grows as new cards pass our source checks.
Where do the answers come from?
Every card lists the sources it was checked against, and each answer explains why it is right. If you think an answer is wrong, tap "Challenge this answer" in the game and it gets reviewed.
Can I study in the car?
Yes. Voice mode reads the questions out loud and you answer by voice.
Try 3 cards
- What gas do plants release into the air during photosynthesis?
Show the answer
Oxygen. Photosynthesis releases oxygen as a by-product, and nearly all living things need oxygen for cellular respiration.
- Which plant part usually absorbs water and minerals from the soil?
Show the answer
The roots. Roots take up water and dissolved minerals from the soil and send them up through the plant.
- What are the two parts of a scientific plant name?
Show the answer
Genus and species. A scientific name combines the genus name with the species epithet, giving each plant one worldwide name.
All 80 practice questions
The first 50 are free, with the answer, why it's right and the official sources. The other 30 (🔒) open with a membership (every test). Or play them as a game and track what you've learned.
Show all 80 questions
- What gas do plants release into the air during photosynthesis?
- Which plant part usually absorbs water and minerals from the soil?
- What are the two parts of a scientific plant name?
- Why are scientific names useful to plant scientists?
- What is the green pigment in chloroplasts that captures light?
- What gas do plants take in from the air for photosynthesis?
- What is the main job of leaves on most plants?
- What do we call a plant that loses its leaves each year?
- What is an annual plant?
- What does a pollinator like a honeybee do for a flower?
- What is grafting?
- Which method grows a new plant from a piece of stem?
- What is a tuber, such as a potato, able to do?
- What does a seed germination test measure?
- What is a seedbed prepared for?
- What is a weed in a crop field?
- What is an invasive non-native plant?
- Why should you collect plants sparingly in the wild?
- What can you use instead of a collected plant for a collection?
- What is a native plant?
- What does a plant identification key help you do?
- Why are voucher specimens important in botany?
- What is a herbarium?
- What is a hardiness zone based on?
- Why is it important to know how big a plant will grow?
- Why might a slower-growing landscape plant be a good choice?
- What does pruning a tree or shrub do?
- What does mulching a garden bed help with?
- What does deadheading a flower do?
- What is compost used for in a garden?
- What is soil texture about?
- How can legumes enrich the soil?
- How can livestock deplete soil?
- What does the pH of soil measure?
- What is shade tolerance in a plant?
- What is a cultivar?
- What does a plant's native habitat describe?
- What is the difference between vegetative and sexual propagation?
- What is the purpose of good landscape design?
- What is a transect used for in plant study?
- What is a nested plot used for?
- Why is Leave No Trace important during field study?
- What is ethnobotany the study of?
- What is palaeobotany the study of?
- What is dendrology the study of?
- What does the hormone ethylene help control in plants?
- Which enzyme captures carbon dioxide in the Calvin cycle?
- What does the Calvin cycle use to reduce carbon dioxide?
- Why do most plants look green to our eyes?
- Where in a plant cell does photosynthesis take place?
- Which plants use the C4 pathway to save water? 🔒
- When do CAM plants take in carbon dioxide? 🔒
- What does the waxy cuticle on a leaf help prevent? 🔒
- What are the stacks of thylakoids inside a chloroplast called? 🔒
- What is the jelly-like fluid inside a chloroplast called? 🔒
- What is the main job of xylem tissue in a plant? 🔒
- What does phloem tissue transport through a plant? 🔒
- What is the main function of plant stems? 🔒
- What is a primary cell wall of a plant cell made of? 🔒
- What does lignin do for vascular plants? 🔒
- What do plant hormones called auxins help control? 🔒
- What do cytokinins mainly promote in plants? 🔒
- What do gibberellins help seeds do? 🔒
- What does abscisic acid promote in plants? 🔒
- What is the role of jasmonates in plants? 🔒
- What are phytochromes sensitive to? 🔒
- What does the Mimosa pudica plant do when touched? 🔒
- What is the function of the Venus flytrap's traps? 🔒
- What is a seed made of? 🔒
- What do gymnosperms produce? 🔒
- What do angiosperms produce? 🔒
- What is the function of the phragmoplast in plant cell division? 🔒
- What are amyloplasts used for in plant cells? 🔒
- What is the role of sporopollenin in plant spores and pollen? 🔒
- What is the role of nitrogen-fixing rhizobia with legumes? 🔒
- What is the role of ants in some ant plants? 🔒
- What is a heated propagator used for? 🔒
- What does a seed-propagation mat provide for seedlings? 🔒
- What is the advantage of vegetative propagation? 🔒
- What is a disadvantage of growing plants from seed? 🔒